74822728 has 8 divisors (see below), whose sum is σ = 140292630. Its totient is φ = 37411360.

The previous prime is 74822677. The next prime is 74822743. The reversal of 74822728 is 82722847.

It can be written as a sum of positive squares in only one way, i.e., 59938564 + 14884164 = 7742^2 + 3858^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4676413 + ... + 4676428.

Almost surely, 2^74822728 is an apocalyptic number.

It is an amenable number.

74822728 is a deficient number, since it is larger than the sum of its proper divisors (65469902).

74822728 is a wasteful number, since it uses less digits than its factorization.

74822728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9352847 (or 9352843 counting only the distinct ones).

The product of its digits is 100352, while the sum is 40.

The square root of 74822728 is about 8650.0131791807. The cubic root of 74822728 is about 421.3838105372.

The spelling of 74822728 in words is "seventy-four million, eight hundred twenty-two thousand, seven hundred twenty-eight".