40864880 has 40 divisors (see below), whose sum is σ = 108585312. Its totient is φ = 14010624.

The previous prime is 40864853. The next prime is 40864891. The reversal of 40864880 is 8846804.

40864880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35927 + ... + 37046.

Almost surely, 2^40864880 is an apocalyptic number.

40864880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40864880 is an abundant number, since it is smaller than the sum of its proper divisors (67720432).

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

40864880 is a wasteful number, since it uses less digits than its factorization.

40864880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72993 (or 72987 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 40864880 is about 6392.5644306491. The cubic root of 40864880 is about 344.4425078706.

The spelling of 40864880 in words is "forty million, eight hundred sixty-four thousand, eight hundred eighty".