74713520 has 40 divisors (see below), whose sum is σ = 198525984. Its totient is φ = 25615872.

The previous prime is 74713459. The next prime is 74713531. The reversal of 74713520 is 2531747.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×74713520² = 11164220141580800, which contains 22 as substring.

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, 66149 + ... + 67268.

Almost surely, 2^74713520 is an apocalyptic number.

74713520 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

74713520 is an abundant number, since it is smaller than the sum of its proper divisors (123812464).

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

74713520 is a wasteful number, since it uses less digits than its factorization.

74713520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133437 (or 133431 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 74713520 is about 8643.6982825640. The cubic root of 74713520 is about 421.1786995527.

The spelling of 74713520 in words is "seventy-four million, seven hundred thirteen thousand, five hundred twenty".