40645552 has 20 divisors (see below), whose sum is σ = 78883840. Its totient is φ = 20288448.

The previous prime is 40645543. The next prime is 40645567. The reversal of 40645552 is 25554604.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9553 + ... + 13135.

It is an arithmetic number, because the mean of its divisors is an integer number (3944192).

Almost surely, 2^40645552 is an apocalyptic number.

It is an amenable number.

40645552 is a deficient number, since it is larger than the sum of its proper divisors (38238288).

40645552 is a wasteful number, since it uses less digits than its factorization.

40645552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4300 (or 4294 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 40645552 is about 6375.3864196612. The cubic root of 40645552 is about 343.8251770785.

The spelling of 40645552 in words is "forty million, six hundred forty-five thousand, five hundred fifty-two".