439142242 has 32 divisors (see below), whose sum is σ = 832840704. Its totient is φ = 168680400.

The previous prime is 439142219. The next prime is 439142279. The reversal of 439142242 is 242241934.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9148 + ... + 31015.

It is an arithmetic number, because the mean of its divisors is an integer number (26026272).

Almost surely, 2^439142242 is an apocalyptic number.

439142242 is a deficient number, since it is larger than the sum of its proper divisors (393698462).

439142242 is a wasteful number, since it uses less digits than its factorization.

439142242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40254.

The product of its digits is 13824, while the sum is 31.

The square root of 439142242 is about 20955.7209849721. The cubic root of 439142242 is about 760.0959262574.

The spelling of 439142242 in words is "four hundred thirty-nine million, one hundred forty-two thousand, two hundred forty-two".