40864285 has 48 divisors (see below), whose sum is σ = 63529920. Its totient is φ = 24944640.

The previous prime is 40864279. The next prime is 40864309. The reversal of 40864285 is 58246804.

It is a de Polignac number, because none of the positive numbers 2^k-40864285 is a prime.

It is a super-2 number, since 2×40864285² = 3339779577122450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 158877 + ... + 159133.

It is an arithmetic number, because the mean of its divisors is an integer number (1323540).

Almost surely, 2^40864285 is an apocalyptic number.

It is an amenable number.

40864285 is a deficient number, since it is larger than the sum of its proper divisors (22665635).

40864285 is a wasteful number, since it uses less digits than its factorization.

40864285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 40864285 is about 6392.5178920360. The cubic root of 40864285 is about 344.4408361475.

The spelling of 40864285 in words is "forty million, eight hundred sixty-four thousand, two hundred eighty-five".