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41389920 = 25335111367
BaseRepresentation
bin1001110111100…
…0111101100000
32212212211022000
42131320331200
541043434140
64035044000
71011544215
oct235707540
985784260
1041389920
11213aa950
1211a40600
1387623a0
1456d5b0c
153978a30
hex2778f60

41389920 has 384 divisors, whose sum is σ = 172730880. Its totient is φ = 9123840.

The previous prime is 41389877. The next prime is 41389921. The reversal of 41389920 is 2998314.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41389921) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 617727 + ... + 617793.

It is an arithmetic number, because the mean of its divisors is an integer number (449820).

Almost surely, 241389920 is an apocalyptic number.

41389920 is a gapful number since it is divisible by the number (40) 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 41389920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86365440).

41389920 is an abundant number, since it is smaller than the sum of its proper divisors (131340960).

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

41389920 is a wasteful number, since it uses less digits than its factorization.

41389920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 41389920 is about 6433.4998251341. The cubic root of 41389920 is about 345.9113898743.

The spelling of 41389920 in words is "forty-one million, three hundred eighty-nine thousand, nine hundred twenty".