40553660 has 24 divisors (see below), whose sum is σ = 97329120. Its totient is φ = 13904064.

The previous prime is 40553659. The next prime is 40553701. The reversal of 40553660 is 6635504.

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, 144695 + ... + 144974.

It is an arithmetic number, because the mean of its divisors is an integer number (4055380).

Almost surely, 2^40553660 is an apocalyptic number.

It is an amenable number.

40553660 is an abundant number, since it is smaller than the sum of its proper divisors (56775460).

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

40553660 is a wasteful number, since it uses less digits than its factorization.

40553660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289685 (or 289683 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 40553660 is about 6368.1755629065. The cubic root of 40553660 is about 343.5658734029.

The spelling of 40553660 in words is "forty million, five hundred fifty-three thousand, six hundred sixty".