74859642 has 96 divisors (see below), whose sum is σ = 192890880. Its totient is φ = 20684160.

The previous prime is 74859623. The next prime is 74859667. The reversal of 74859642 is 24695847.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 326784 + ... + 327012.

It is an arithmetic number, because the mean of its divisors is an integer number (2009280).

Almost surely, 2^74859642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74859642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96445440).

74859642 is an abundant number, since it is smaller than the sum of its proper divisors (118031238).

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

74859642 is a wasteful number, since it uses less digits than its factorization.

74859642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 385 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 74859642 is about 8652.1466700467. The cubic root of 74859642 is about 421.4530961009.

The spelling of 74859642 in words is "seventy-four million, eight hundred fifty-nine thousand, six hundred forty-two".