74938628 has 6 divisors (see below), whose sum is σ = 131142606. Its totient is φ = 37469312.

The previous prime is 74938621. The next prime is 74938631. The reversal of 74938628 is 82683947.

It can be written as a sum of positive squares in only one way, i.e., 65254084 + 9684544 = 8078^2 + 3112^2 .

It is not an unprimeable number, because it can be changed into a prime (74938621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9367325 + ... + 9367332.

It is an arithmetic number, because the mean of its divisors is an integer number (21857101).

Almost surely, 2^74938628 is an apocalyptic number.

It is an amenable number.

74938628 is a deficient number, since it is larger than the sum of its proper divisors (56203978).

74938628 is a wasteful number, since it uses less digits than its factorization.

74938628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18734661 (or 18734659 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 74938628 is about 8656.7099986080. The cubic root of 74938628 is about 421.6012720395.

The spelling of 74938628 in words is "seventy-four million, nine hundred thirty-eight thousand, six hundred twenty-eight".