74620928 has 28 divisors (see below), whose sum is σ = 149249130. Its totient is φ = 37306368.

The previous prime is 74620883. The next prime is 74620963. The reversal of 74620928 is 82902647.

It can be written as a sum of positive squares in only one way, i.e., 72454144 + 2166784 = 8512^2 + 1472^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74620891 and 74620900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3638 + ... + 12746.

Almost surely, 2^74620928 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 74620928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74624565).

74620928 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

74620928 is an frugal number, since it uses more digits than its factorization.

74620928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9135 (or 9111 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 74620928 is about 8638.3405813848. The cubic root of 74620928 is about 421.0046395827.

The spelling of 74620928 in words is "seventy-four million, six hundred twenty thousand, nine hundred twenty-eight".