74911842 has 12 divisors (see below), whose sum is σ = 162309030. Its totient is φ = 24970608.

The previous prime is 74911831. The next prime is 74911847. The reversal of 74911842 is 24811947.

It can be written as a sum of positive squares in only one way, i.e., 37933281 + 36978561 = 6159^2 + 6081^2 .

It is a super-2 number, since 2×74911842² = 11223568143665928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74911797 and 74911806.

It is not an unprimeable number, because it can be changed into a prime (74911847) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 2080867 + ... + 2080902.

Almost surely, 2^74911842 is an apocalyptic number.

74911842 is an abundant number, since it is smaller than the sum of its proper divisors (87397188).

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

74911842 is a wasteful number, since it uses less digits than its factorization.

74911842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4161777 (or 4161774 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 74911842 is about 8655.1627367716. The cubic root of 74911842 is about 421.5510337856.

The spelling of 74911842 in words is "seventy-four million, nine hundred eleven thousand, eight hundred forty-two".