74664530 has 8 divisors (see below), whose sum is σ = 134396172. Its totient is φ = 29865808.

The previous prime is 74664511. The next prime is 74664533. The reversal of 74664530 is 3546647.

It can be written as a sum of positive squares in 2 ways, for example, as 72471169 + 2193361 = 8513^2 + 1481^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (74664533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3733217 + ... + 3733236.

Almost surely, 2^74664530 is an apocalyptic number.

74664530 is a deficient number, since it is larger than the sum of its proper divisors (59731642).

74664530 is a wasteful number, since it uses less digits than its factorization.

74664530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7466460.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 74664530 is about 8640.8639614335. The cubic root of 74664530 is about 421.0866231522.

The spelling of 74664530 in words is "seventy-four million, six hundred sixty-four thousand, five hundred thirty".