74428608 has 56 divisors (see below), whose sum is σ = 202267312. Its totient is φ = 24136704.

The previous prime is 74428603. The next prime is 74428609. The reversal of 74428608 is 80682447.

It is not an unprimeable number, because it can be changed into a prime (74428603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1866 + ... + 12342.

Almost surely, 2^74428608 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 74428608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101133656).

74428608 is an abundant number, since it is smaller than the sum of its proper divisors (127838704).

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

74428608 is a wasteful number, since it uses less digits than its factorization.

74428608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10529 (or 10519 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 74428608 is about 8627.2016320473. The cubic root of 74428608 is about 420.6426443028.

The spelling of 74428608 in words is "seventy-four million, four hundred twenty-eight thousand, six hundred eight".