40445556 has 24 divisors (see below), whose sum is σ = 94852800. Its totient is φ = 13413312.

The previous prime is 40445549. The next prime is 40445579. The reversal of 40445556 is 65554404.

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, 6081 + ... + 10856.

It is an arithmetic number, because the mean of its divisors is an integer number (3952200).

Almost surely, 2^40445556 is an apocalyptic number.

It is an amenable number.

40445556 is an abundant number, since it is smaller than the sum of its proper divisors (54407244).

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

40445556 is a wasteful number, since it uses less digits than its factorization.

40445556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17143 (or 17141 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

The square root of 40445556 is about 6359.6820675251. The cubic root of 40445556 is about 343.2603202478.

The spelling of 40445556 in words is "forty million, four hundred forty-five thousand, five hundred fifty-six".