40865004 has 36 divisors (see below), whose sum is σ = 104329680. Its totient is φ = 13485600.

The previous prime is 40864963. The next prime is 40865009. The reversal of 40865004 is 40056804.

40865004 is a `hidden beast` number, since 4 + 0 + 8 + 650 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (40865009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1984 + ... + 9255.

Almost surely, 2^40865004 is an apocalyptic number.

It is an amenable number.

40865004 is an abundant number, since it is smaller than the sum of its proper divisors (63464676).

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

40865004 is a wasteful number, since it uses less digits than its factorization.

40865004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11350 (or 11345 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 40865004 is about 6392.5741294098. The cubic root of 40865004 is about 344.4428562612.

The spelling of 40865004 in words is "forty million, eight hundred sixty-five thousand, four".