74691120 has 160 divisors (see below), whose sum is σ = 276268032. Its totient is φ = 16321536.

The previous prime is 74691101. The next prime is 74691137. The reversal of 74691120 is 2119647.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37674 + ... + 39606.

Almost surely, 2^74691120 is an apocalyptic number.

74691120 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74691120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138134016).

74691120 is an abundant number, since it is smaller than the sum of its proper divisors (201576912).

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

74691120 is a wasteful number, since it uses less digits than its factorization.

74691120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979 (or 1973 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 74691120 is about 8642.4024437653. The cubic root of 74691120 is about 421.1366038879.

The spelling of 74691120 in words is "seventy-four million, six hundred ninety-one thousand, one hundred twenty".