74740120 has 64 divisors (see below), whose sum is σ = 206982720. Its totient is φ = 23652864.

The previous prime is 74740117. The next prime is 74740139. The reversal of 74740120 is 2104747.

It is a super-2 number, since 2×74740120² = 11172171075228800, which contains 22 as substring.

It is a congruent number.

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, 6627 + ... + 13906.

It is an arithmetic number, because the mean of its divisors is an integer number (3234105).

Almost surely, 2^74740120 is an apocalyptic number.

74740120 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

74740120 is an abundant number, since it is smaller than the sum of its proper divisors (132242600).

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

74740120 is a wasteful number, since it uses less digits than its factorization.

74740120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20564 (or 20560 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 74740120 is about 8645.2368388610. The cubic root of 74740120 is about 421.2286772279.

Adding to 74740120 its reverse (2104747), we get a palindrome (76844867).

The spelling of 74740120 in words is "seventy-four million, seven hundred forty thousand, one hundred twenty".