40872512 has 14 divisors (see below), whose sum is σ = 81106518. Its totient is φ = 20436224.

The previous prime is 40872511. The next prime is 40872523. The reversal of 40872512 is 21527804.

It can be written as a sum of positive squares in only one way, i.e., 39740416 + 1132096 = 6304^2 + 1064^2 .

It is not an unprimeable number, because it can be changed into a prime (40872511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319253 + ... + 319380.

Almost surely, 2^40872512 is an apocalyptic number.

It is an amenable number.

40872512 is a deficient number, since it is larger than the sum of its proper divisors (40234006).

40872512 is an equidigital number, since it uses as much as digits as its factorization.

40872512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638645 (or 638635 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 40872512 is about 6393.1613463137. The cubic root of 40872512 is about 344.4639494408.

The spelling of 40872512 in words is "forty million, eight hundred seventy-two thousand, five hundred twelve".