74938720 has 48 divisors (see below), whose sum is σ = 187463808. Its totient is φ = 28211200.

The previous prime is 74938711. The next prime is 74938729. The reversal of 74938720 is 2783947.

It is an interprime number because it is at equal distance from previous prime (74938711) and next prime (74938729).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74938729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11056 + ... + 16495.

It is an arithmetic number, because the mean of its divisors is an integer number (3905496).

Almost surely, 2^74938720 is an apocalyptic number.

It is an amenable number.

74938720 is an abundant number, since it is smaller than the sum of its proper divisors (112525088).

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

74938720 is a wasteful number, since it uses less digits than its factorization.

74938720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27583 (or 27575 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 74938720 is about 8656.7153124034. The cubic root of 74938720 is about 421.6014445687.

The spelling of 74938720 in words is "seventy-four million, nine hundred thirty-eight thousand, seven hundred twenty".