40257964 has 12 divisors (see below), whose sum is σ = 72724288. Its totient is φ = 19479600.

The previous prime is 40257947. The next prime is 40257983. The reversal of 40257964 is 46975204.

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, 162207 + ... + 162454.

Almost surely, 2^40257964 is an apocalyptic number.

It is an amenable number.

40257964 is a deficient number, since it is larger than the sum of its proper divisors (32466324).

40257964 is a wasteful number, since it uses less digits than its factorization.

40257964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324696 (or 324694 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 40257964 is about 6344.9163903081. The cubic root of 40257964 is about 342.7288016004.

The spelling of 40257964 in words is "forty million, two hundred fifty-seven thousand, nine hundred sixty-four".