74728052 has 24 divisors (see below), whose sum is σ = 149681280. Its totient is φ = 31978080.

The previous prime is 74728037. The next prime is 74728061. The reversal of 74728052 is 25082747.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21902 + ... + 25082.

It is an arithmetic number, because the mean of its divisors is an integer number (6236720).

Almost surely, 2^74728052 is an apocalyptic number.

It is an amenable number.

74728052 is an abundant number, since it is smaller than the sum of its proper divisors (74953228).

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

74728052 is a wasteful number, since it uses less digits than its factorization.

74728052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4031 (or 4029 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 74728052 is about 8644.5388540974. The cubic root of 74728052 is about 421.2060046155.

The spelling of 74728052 in words is "seventy-four million, seven hundred twenty-eight thousand, fifty-two".