74047760 has 20 divisors (see below), whose sum is σ = 172161228. Its totient is φ = 29619072.

The previous prime is 74047711. The next prime is 74047777. The reversal of 74047760 is 6774047.

It can be written as a sum of positive squares in 2 ways, for example, as 40500496 + 33547264 = 6364^2 + 5792^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×74047760² = 10966141522035200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74047760.

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, 462719 + ... + 462878.

Almost surely, 2^74047760 is an apocalyptic number.

It is an amenable number.

74047760 is an abundant number, since it is smaller than the sum of its proper divisors (98113468).

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

74047760 is a wasteful number, since it uses less digits than its factorization.

74047760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925610 (or 925604 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 74047760 is about 8605.1008128900. The cubic root of 74047760 is about 419.9239469246.

The spelling of 74047760 in words is "seventy-four million, forty-seven thousand, seven hundred sixty".