40664532 has 24 divisors (see below), whose sum is σ = 95086656. Its totient is φ = 13525888.

The previous prime is 40664501. The next prime is 40664549. The reversal of 40664532 is 23546604.

It is a self number, because there is not a number n which added to its sum of digits gives 40664532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2668 + ... + 9404.

It is an arithmetic number, because the mean of its divisors is an integer number (3961944).

Almost surely, 2^40664532 is an apocalyptic number.

It is an amenable number.

40664532 is an abundant number, since it is smaller than the sum of its proper divisors (54422124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40664532 is a wasteful number, since it uses less digits than its factorization.

40664532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7247 (or 7245 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 40664532 is about 6376.8747831520. The cubic root of 40664532 is about 343.8786867167.

The spelling of 40664532 in words is "forty million, six hundred sixty-four thousand, five hundred thirty-two".