40864851 has 16 divisors (see below), whose sum is σ = 62494720. Its totient is φ = 26363880.

The previous prime is 40864829. The next prime is 40864853. The reversal of 40864851 is 15846804.

40864851 is a `hidden beast` number, since 4 + 0 + 8 + 648 + 5 + 1 = 666.

It is not a de Polignac number, because 40864851 - 2⁷ = 40864723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40864853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23575 + ... + 25248.

It is an arithmetic number, because the mean of its divisors is an integer number (3905920).

Almost surely, 2^40864851 is an apocalyptic number.

40864851 is a deficient number, since it is larger than the sum of its proper divisors (21629869).

40864851 is a wasteful number, since it uses less digits than its factorization.

40864851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48863 (or 48857 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 40864851 is about 6392.5621623884. The cubic root of 40864851 is about 344.4424263920.

The spelling of 40864851 in words is "forty million, eight hundred sixty-four thousand, eight hundred fifty-one".