74772036 has 18 divisors (see below), whose sum is σ = 189007182. Its totient is φ = 24924000.

The previous prime is 74772013. The next prime is 74772041. The reversal of 74772036 is 63027747.

It can be written as a sum of positive squares in only one way, i.e., 60933636 + 13838400 = 7806^2 + 3720^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2077001 = 74772036 / (7 + 4 + 7 + 7 + 2 + 0 + 3 + 6).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1038465 + ... + 1038536.

It is an arithmetic number, because the mean of its divisors is an integer number (10500399).

Almost surely, 2^74772036 is an apocalyptic number.

It is an amenable number.

74772036 is an abundant number, since it is smaller than the sum of its proper divisors (114235146).

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

74772036 is a wasteful number, since it uses less digits than its factorization.

74772036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077011 (or 2077006 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 74772036 is about 8647.0825137731. The cubic root of 74772036 is about 421.2886272756.

The spelling of 74772036 in words is "seventy-four million, seven hundred seventy-two thousand, thirty-six".