42499974 has 32 divisors (see below), whose sum is σ = 92969856. Its totient is φ = 12845120.

The previous prime is 42499969. The next prime is 42499987. The reversal of 42499974 is 47999424.

42499974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 38194 + ... + 39290.

It is an arithmetic number, because the mean of its divisors is an integer number (2905308).

Almost surely, 2^42499974 is an apocalyptic number.

42499974 is an abundant number, since it is smaller than the sum of its proper divisors (50469882).

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

42499974 is a wasteful number, since it uses less digits than its factorization.

42499974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700.

The product of its digits is 653184, while the sum is 48.

The square root of 42499974 is about 6519.2004110934. The cubic root of 42499974 is about 348.9765311816.

The spelling of 42499974 in words is "forty-two million, four hundred ninety-nine thousand, nine hundred seventy-four".