40899072 has 40 divisors (see below), whose sum is σ = 108961776. Its totient is φ = 13632512.

The previous prime is 40899031. The next prime is 40899091. The reversal of 40899072 is 27099804.

It is a super-2 number, since 2×40899072² = 3345468180922368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40899072.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11778 + ... + 14849.

Almost surely, 2^40899072 is an apocalyptic number.

It is an amenable number.

40899072 is an abundant number, since it is smaller than the sum of its proper divisors (68062704).

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

40899072 is an equidigital number, since it uses as much as digits as its factorization.

40899072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26648 (or 26632 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 40899072 is about 6395.2382285572. The cubic root of 40899072 is about 344.5385471025.

The spelling of 40899072 in words is "forty million, eight hundred ninety-nine thousand, seventy-two".