74440560 has 40 divisors (see below), whose sum is σ = 230766480. Its totient is φ = 19850752.

The previous prime is 74440547. The next prime is 74440571. The reversal of 74440560 is 6504447.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×74440560² = 11082793946227200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154845 + ... + 155324.

It is an arithmetic number, because the mean of its divisors is an integer number (5769162).

Almost surely, 2^74440560 is an apocalyptic number.

It is an amenable number.

74440560 is an abundant number, since it is smaller than the sum of its proper divisors (156325920).

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

74440560 is a wasteful number, since it uses less digits than its factorization.

74440560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310185 (or 310179 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 74440560 is about 8627.8942969881. The cubic root of 74440560 is about 420.6651591750.

The spelling of 74440560 in words is "seventy-four million, four hundred forty thousand, five hundred sixty".