40087404 has 72 divisors (see below), whose sum is σ = 116433408. Its totient is φ = 11391840.

The previous prime is 40087379. The next prime is 40087409. The reversal of 40087404 is 40478004.

It is not an unprimeable number, because it can be changed into a prime (40087409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67999 + ... + 68585.

Almost surely, 2^40087404 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 40087404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58216704).

40087404 is an abundant number, since it is smaller than the sum of its proper divisors (76346004).

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

40087404 is a wasteful number, since it uses less digits than its factorization.

40087404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 40087404 is about 6331.4614426687. The cubic root of 40087404 is about 342.2441060167.

The spelling of 40087404 in words is "forty million, eighty-seven thousand, four hundred four".