74380628 has 36 divisors (see below), whose sum is σ = 152258400. Its totient is φ = 31700592.

The previous prime is 74380609. The next prime is 74380639. The reversal of 74380628 is 82608347.

74380628 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

74380628 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 74380591 and 74380600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38051 + ... + 39957.

It is an arithmetic number, because the mean of its divisors is an integer number (4229400).

Almost surely, 2^74380628 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 74380628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76129200).

74380628 is an abundant number, since it is smaller than the sum of its proper divisors (77877772).

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

74380628 is a wasteful number, since it uses less digits than its factorization.

74380628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124 (or 2115 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 74380628 is about 8624.4204442965. The cubic root of 74380628 is about 420.5522365371.

The spelling of 74380628 in words is "seventy-four million, three hundred eighty thousand, six hundred twenty-eight".