74943120 has 160 divisors (see below), whose sum is σ = 274268160. Its totient is φ = 16565760.

The previous prime is 74943103. The next prime is 74943137. The reversal of 74943120 is 2134947.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (74943103) and next prime (74943137).

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, 51361 + ... + 52799.

It is an arithmetic number, because the mean of its divisors is an integer number (1714176).

Almost surely, 2^74943120 is an apocalyptic number.

74943120 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 74943120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137134080).

74943120 is an abundant number, since it is smaller than the sum of its proper divisors (199325040).

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

74943120 is a wasteful number, since it uses less digits than its factorization.

74943120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493 (or 1487 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 74943120 is about 8656.9694466366. The cubic root of 74943120 is about 421.6096957996.

The spelling of 74943120 in words is "seventy-four million, nine hundred forty-three thousand, one hundred twenty".