74888428 has 6 divisors (see below), whose sum is σ = 131054756. Its totient is φ = 37444212.

The previous prime is 74888399. The next prime is 74888441. The reversal of 74888428 is 82488847.

It is a super-2 number, since 2×74888428² = 11216553296622368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9361050 + ... + 9361057.

Almost surely, 2^74888428 is an apocalyptic number.

It is an amenable number.

74888428 is a deficient number, since it is larger than the sum of its proper divisors (56166328).

74888428 is a wasteful number, since it uses less digits than its factorization.

74888428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18722111 (or 18722109 counting only the distinct ones).

The product of its digits is 917504, while the sum is 49.

The square root of 74888428 is about 8653.8100279588. The cubic root of 74888428 is about 421.5071100474.

The spelling of 74888428 in words is "seventy-four million, eight hundred eighty-eight thousand, four hundred twenty-eight".