74520628 has 48 divisors (see below), whose sum is σ = 162175104. Its totient is φ = 29174400.

The previous prime is 74520619. The next prime is 74520647. The reversal of 74520628 is 82602547.

It is a junction number, because it is equal to n+sod(n) for n = 74520593 and 74520602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35751 + ... + 37777.

It is an arithmetic number, because the mean of its divisors is an integer number (3378648).

Almost surely, 2^74520628 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 74520628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81087552).

74520628 is an abundant number, since it is smaller than the sum of its proper divisors (87654476).

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

74520628 is a wasteful number, since it uses less digits than its factorization.

74520628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152 (or 2150 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 74520628 is about 8632.5331160674. The cubic root of 74520628 is about 420.8159271128.

The spelling of 74520628 in words is "seventy-four million, five hundred twenty thousand, six hundred twenty-eight".