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22341940 = 2254383313
BaseRepresentation
bin101010100111…
…0100100110100
31120001002101021
41111032210310
521204420230
62114510524
7360621565
oct125164464
946032337
1022341940
111167a915
127595444
1348233aa
142d7816c
151e64c7a
hex154e934

22341940 has 48 divisors (see below), whose sum is σ = 48742848. Its totient is φ = 8596224.

The previous prime is 22341923. The next prime is 22341941. The reversal of 22341940 is 4914322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22341941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71224 + ... + 71536.

It is an arithmetic number, because the mean of its divisors is an integer number (1015476).

Almost surely, 222341940 is an apocalyptic number.

22341940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22341940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24371424).

22341940 is an abundant number, since it is smaller than the sum of its proper divisors (26400908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22341940 is a wasteful number, since it uses less digits than its factorization.

22341940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 22341940 is about 4726.7261397293. The cubic root of 22341940 is about 281.6481872653.

The spelling of 22341940 in words is "twenty-two million, three hundred forty-one thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 43 83 86 166 172 215 313 332 415 430 626 830 860 1252 1565 1660 3130 3569 6260 7138 13459 14276 17845 25979 26918 35690 51958 53836 67295 71380 103916 129895 134590 259790 269180 519580 1117097 2234194 4468388 5585485 11170970 22341940