442143472 has 20 divisors (see below), whose sum is σ = 857128176. Its totient is φ = 220949120.

The previous prime is 442143461. The next prime is 442143491. The reversal of 442143472 is 274341244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26772 + ... + 40012.

Almost surely, 2^442143472 is an apocalyptic number.

It is an amenable number.

442143472 is a deficient number, since it is larger than the sum of its proper divisors (414984704).

442143472 is a wasteful number, since it uses less digits than its factorization.

442143472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15336 (or 15330 counting only the distinct ones).

The product of its digits is 21504, while the sum is 31.

The square root of 442143472 is about 21027.2078983397. The cubic root of 442143472 is about 761.8235710974.

The spelling of 442143472 in words is "four hundred forty-two million, one hundred forty-three thousand, four hundred seventy-two".