40857412 has 12 divisors (see below), whose sum is σ = 71580096. Its totient is φ = 20405960.

The previous prime is 40857389. The next prime is 40857419. The reversal of 40857412 is 21475804.

It is not an unprimeable number, because it can be changed into a prime (40857419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1264 + ... + 9127.

It is an arithmetic number, because the mean of its divisors is an integer number (5965008).

Almost surely, 2^40857412 is an apocalyptic number.

It is an amenable number.

40857412 is a deficient number, since it is larger than the sum of its proper divisors (30722684).

40857412 is a wasteful number, since it uses less digits than its factorization.

40857412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11378 (or 11376 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 40857412 is about 6391.9802878294. The cubic root of 40857412 is about 344.4215244625.

The spelling of 40857412 in words is "forty million, eight hundred fifty-seven thousand, four hundred twelve".