74660 has 12 divisors (see below), whose sum is σ = 156828. Its totient is φ = 29856.

The previous prime is 74653. The next prime is 74687. The reversal of 74660 is 6647.

74660 = T₄₀ + T₄₁ + ... + T₇₉.

It can be written as a sum of positive squares in 2 ways, for example, as 33856 + 40804 = 184^2 + 202^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

74660 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1847 + ... + 1886.

It is an arithmetic number, because the mean of its divisors is an integer number (13069).

2⁷⁴⁶⁶⁰ is an apocalyptic number.

It is an amenable number.

74660 is an abundant number, since it is smaller than the sum of its proper divisors (82168).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78414).

74660 is a wasteful number, since it uses less digits than its factorization.

74660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3742 (or 3740 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 74660 is about 273.2398214024. The cubic root of 74660 is about 42.1078107011.

The spelling of 74660 in words is "seventy-four thousand, six hundred sixty".