74708730 has 40 divisors (see below), whose sum is σ = 200885652. Its totient is φ = 19922112.

The previous prime is 74708719. The next prime is 74708737. The reversal of 74708730 is 3780747.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 69605649 + 5103081 = 8343^2 + 2259^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74708737) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 45307 + ... + 46926.

Almost surely, 2^74708730 is an apocalyptic number.

74708730 is an abundant number, since it is smaller than the sum of its proper divisors (126176922).

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

74708730 is a wasteful number, since it uses less digits than its factorization.

74708730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92252 (or 92243 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 74708730 is about 8643.4211976508. The cubic root of 74708730 is about 421.1696985531.

The spelling of 74708730 in words is "seventy-four million, seven hundred eight thousand, seven hundred thirty".