74739460 has 24 divisors (see below), whose sum is σ = 157867416. Its totient is φ = 29721600.

The previous prime is 74739449. The next prime is 74739473. The reversal of 74739460 is 6493747.

It can be written as a sum of positive squares in 4 ways, for example, as 37748736 + 36990724 = 6144^2 + 6082^2 .

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, 7341 + ... + 14260.

It is an arithmetic number, because the mean of its divisors is an integer number (6577809).

Almost surely, 2^74739460 is an apocalyptic number.

It is an amenable number.

74739460 is an abundant number, since it is smaller than the sum of its proper divisors (83127956).

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

74739460 is a wasteful number, since it uses less digits than its factorization.

74739460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21783 (or 21781 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 74739460 is about 8645.1986674686. The cubic root of 74739460 is about 421.2274373238.

The spelling of 74739460 in words is "seventy-four million, seven hundred thirty-nine thousand, four hundred sixty".