40804736 has 32 divisors (see below), whose sum is σ = 92905680. Its totient is φ = 17487360.

The previous prime is 40804733. The next prime is 40804739. The reversal of 40804736 is 63740804.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40804733) and next prime (40804739).

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40804733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21875 + ... + 23666.

Almost surely, 2^40804736 is an apocalyptic number.

It is an amenable number.

40804736 is an abundant number, since it is smaller than the sum of its proper divisors (52100944).

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

40804736 is an equidigital number, since it uses as much as digits as its factorization.

40804736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45562 (or 45550 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 40804736 is about 6387.8584830912. The cubic root of 40804736 is about 344.2734440216.

The spelling of 40804736 in words is "forty million, eight hundred four thousand, seven hundred thirty-six".