74742522 has 16 divisors (see below), whose sum is σ = 149966400. Its totient is φ = 24833952.

The previous prime is 74742511. The next prime is 74742601. The reversal of 74742522 is 22524747.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18022 + ... + 21777.

It is an arithmetic number, because the mean of its divisors is an integer number (9372900).

Almost surely, 2^74742522 is an apocalyptic number.

74742522 is an abundant number, since it is smaller than the sum of its proper divisors (75223878).

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

74742522 is a wasteful number, since it uses less digits than its factorization.

74742522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40117.

The product of its digits is 31360, while the sum is 33.

The square root of 74742522 is about 8645.3757581727. The cubic root of 74742522 is about 421.2331896657.

The spelling of 74742522 in words is "seventy-four million, seven hundred forty-two thousand, five hundred twenty-two".