74649942 has 24 divisors (see below), whose sum is σ = 166114416. Its totient is φ = 24210576.

The previous prime is 74649929. The next prime is 74649943. The reversal of 74649942 is 24994647.

It is a super-2 number, since 2×74649942² = 11145227681206728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74649943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55378 + ... + 56709.

It is an arithmetic number, because the mean of its divisors is an integer number (6921434).

Almost surely, 2^74649942 is an apocalyptic number.

74649942 is an abundant number, since it is smaller than the sum of its proper divisors (91464474).

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

74649942 is a wasteful number, since it uses less digits than its factorization.

74649942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112132 (or 112129 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 74649942 is about 8640.0197916440. The cubic root of 74649942 is about 421.0591973148.

The spelling of 74649942 in words is "seventy-four million, six hundred forty-nine thousand, nine hundred forty-two".