40532740 has 24 divisors (see below), whose sum is σ = 85904280. Its totient is φ = 16063488.

The previous prime is 40532729. The next prime is 40532759. The reversal of 40532740 is 4723504.

It can be written as a sum of positive squares in 4 ways, for example, as 8111104 + 32421636 = 2848^2 + 5694^2 .

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, 7117 + ... + 11476.

It is an arithmetic number, because the mean of its divisors is an integer number (3579345).

Almost surely, 2^40532740 is an apocalyptic number.

It is an amenable number.

40532740 is an abundant number, since it is smaller than the sum of its proper divisors (45371540).

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

40532740 is a wasteful number, since it uses less digits than its factorization.

40532740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18711 (or 18709 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 40532740 is about 6366.5328083659. The cubic root of 40532740 is about 343.5067859755.

The spelling of 40532740 in words is "forty million, five hundred thirty-two thousand, seven hundred forty".