74749928 has 96 divisors (see below), whose sum is σ = 165473280. Its totient is φ = 31574400.

The previous prime is 74749921. The next prime is 74749963. The reversal of 74749928 is 82994747.

Its product of digits (1016064) is a multiple of the sum of its prime divisors (144).

It is not an unprimeable number, because it can be changed into a prime (74749921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1410350 + ... + 1410402.

It is an arithmetic number, because the mean of its divisors is an integer number (1723680).

Almost surely, 2^74749928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74749928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82736640).

74749928 is an abundant number, since it is smaller than the sum of its proper divisors (90723352).

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

74749928 is a wasteful number, since it uses less digits than its factorization.

74749928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 144 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 50.

The square root of 74749928 is about 8645.8040690268. The cubic root of 74749928 is about 421.2471020942.

The spelling of 74749928 in words is "seventy-four million, seven hundred forty-nine thousand, nine hundred twenty-eight".