22469940 has 48 divisors (see below), whose sum is σ = 69908160. Its totient is φ = 5991840.

The previous prime is 22469939. The next prime is 22469981. The reversal of 22469940 is 4996422.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 22469895 and 22469904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20266 + ... + 21345.

It is an arithmetic number, because the mean of its divisors is an integer number (1456420).

Almost surely, 2^22469940 is an apocalyptic number.

22469940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22469940 is an abundant number, since it is smaller than the sum of its proper divisors (47438220).

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

22469940 is a wasteful number, since it uses less digits than its factorization.

22469940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41629 (or 41621 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 22469940 is about 4740.2468290164. The cubic root of 22469940 is about 282.1850302209.

It can be divided in two parts, 22469 and 940, that added together give a square (23409 = 153²).

The spelling of 22469940 in words is "twenty-two million, four hundred sixty-nine thousand, nine hundred forty".