40732506 has 24 divisors (see below), whose sum is σ = 89702964. Its totient is φ = 13354560.

The previous prime is 40732477. The next prime is 40732513. The reversal of 40732506 is 60523704.

It is a happy number.

40732506 is a `hidden beast` number, since 407 + 3 + 250 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 32661225 + 8071281 = 5715^2 + 2841^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40732506.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17451 + ... + 19646.

Almost surely, 2^40732506 is an apocalyptic number.

40732506 is an abundant number, since it is smaller than the sum of its proper divisors (48970458).

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

40732506 is a wasteful number, since it uses less digits than its factorization.

40732506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37166 (or 37163 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 40732506 is about 6382.2022844783. The cubic root of 40732506 is about 344.0701869136.

The spelling of 40732506 in words is "forty million, seven hundred thirty-two thousand, five hundred six".