74497530 has 32 divisors (see below), whose sum is σ = 181828800. Its totient is φ = 19528832.

The previous prime is 74497523. The next prime is 74497547. The reversal of 74497530 is 3579447.

It is a super-2 number, since 2×74497530² = 11099763952201800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19275 + ... + 22814.

It is an arithmetic number, because the mean of its divisors is an integer number (5682150).

Almost surely, 2^74497530 is an apocalyptic number.

74497530 is an abundant number, since it is smaller than the sum of its proper divisors (107331270).

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

74497530 is a wasteful number, since it uses less digits than its factorization.

74497530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42158.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 74497530 is about 8631.1951663718. The cubic root of 74497530 is about 420.7724446974.

The spelling of 74497530 in words is "seventy-four million, four hundred ninety-seven thousand, five hundred thirty".