40395537 has 64 divisors (see below), whose sum is σ = 75640320. Its totient is φ = 20736000.

The previous prime is 40395529. The next prime is 40395559. The reversal of 40395537 is 73559304.

It is not a de Polignac number, because 40395537 - 2³ = 40395529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40393537) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 100537 + ... + 100937.

It is an arithmetic number, because the mean of its divisors is an integer number (1181880).

Almost surely, 2^40395537 is an apocalyptic number.

It is an amenable number.

40395537 is a deficient number, since it is larger than the sum of its proper divisors (35244783).

40395537 is a wasteful number, since it uses less digits than its factorization.

40395537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The square root of 40395537 is about 6355.7483430356. The cubic root of 40395537 is about 343.1187585834.

The spelling of 40395537 in words is "forty million, three hundred ninety-five thousand, five hundred thirty-seven".