40931892 has 48 divisors (see below), whose sum is σ = 107452800. Its totient is φ = 13641048.

The previous prime is 40931861. The next prime is 40931893. The reversal of 40931892 is 29813904.

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 (40931893) 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, 6409 + ... + 11087.

It is an arithmetic number, because the mean of its divisors is an integer number (2238600).

Almost surely, 2^40931892 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40931892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53726400).

40931892 is an abundant number, since it is smaller than the sum of its proper divisors (66520908).

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

40931892 is an equidigital number, since it uses as much as digits as its factorization.

40931892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4704 (or 4684 counting only the distinct ones).

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

The square root of 40931892 is about 6397.8036856409. The cubic root of 40931892 is about 344.6306822963.

The spelling of 40931892 in words is "forty million, nine hundred thirty-one thousand, eight hundred ninety-two".