40215804 has 24 divisors (see below), whose sum is σ = 96864768. Its totient is φ = 12972720.

The previous prime is 40215797. The next prime is 40215809. The reversal of 40215804 is 40851204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40215809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53682 + ... + 54425.

It is an arithmetic number, because the mean of its divisors is an integer number (4036032).

Almost surely, 2^40215804 is an apocalyptic number.

It is an amenable number.

40215804 is an abundant number, since it is smaller than the sum of its proper divisors (56648964).

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

40215804 is a wasteful number, since it uses less digits than its factorization.

40215804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108145 (or 108143 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 40215804 is about 6341.5931752202. The cubic root of 40215804 is about 342.6091193329.

The spelling of 40215804 in words is "forty million, two hundred fifteen thousand, eight hundred four".