74789642 has 16 divisors (see below), whose sum is σ = 115063872. Its totient is φ = 36439200.

The previous prime is 74789593. The next prime is 74789657. The reversal of 74789642 is 24698747.

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, 50963 + ... + 52409.

It is an arithmetic number, because the mean of its divisors is an integer number (7191492).

Almost surely, 2^74789642 is an apocalyptic number.

74789642 is a deficient number, since it is larger than the sum of its proper divisors (40274230).

74789642 is a wasteful number, since it uses less digits than its factorization.

74789642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093.

The product of its digits is 677376, while the sum is 47.

The square root of 74789642 is about 8648.1004850776. The cubic root of 74789642 is about 421.3216905520.

The spelling of 74789642 in words is "seventy-four million, seven hundred eighty-nine thousand, six hundred forty-two".