74227572 has 18 divisors (see below), whose sum is σ = 187630898. Its totient is φ = 24742512.

The previous prime is 74227567. The next prime is 74227603. The reversal of 74227572 is 27572247.

It can be written as a sum of positive squares in only one way, i.e., 63297936 + 10929636 = 7956^2 + 3306^2 .

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

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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: 2061877 = 74227572 / (7 + 4 + 2 + 2 + 7 + 5 + 7 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1030903 + ... + 1030974.

Almost surely, 2^74227572 is an apocalyptic number.

It is an amenable number.

74227572 is an abundant number, since it is smaller than the sum of its proper divisors (113403326).

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

74227572 is a wasteful number, since it uses less digits than its factorization.

74227572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061887 (or 2061882 counting only the distinct ones).

The product of its digits is 54880, while the sum is 36.

The square root of 74227572 is about 8615.5424669605. The cubic root of 74227572 is about 420.2635760517.

The spelling of 74227572 in words is "seventy-four million, two hundred twenty-seven thousand, five hundred seventy-two".