40915938 has 16 divisors (see below), whose sum is σ = 93522240. Its totient is φ = 11690256.

The previous prime is 40915921. The next prime is 40915943. The reversal of 40915938 is 83951904.

It is a super-2 number, since 2×40915938² = 3348227964839688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40915896 and 40915905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487053 + ... + 487136.

It is an arithmetic number, because the mean of its divisors is an integer number (5845140).

Almost surely, 2^40915938 is an apocalyptic number.

40915938 is an abundant number, since it is smaller than the sum of its proper divisors (52606302).

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

40915938 is a wasteful number, since it uses less digits than its factorization.

40915938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974201.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 40915938 is about 6396.5567299915. The cubic root of 40915938 is about 344.5859009768.

The spelling of 40915938 in words is "forty million, nine hundred fifteen thousand, nine hundred thirty-eight".