442478902 has 8 divisors (see below), whose sum is σ = 664426512. Its totient is φ = 221003400.

The previous prime is 442478863. The next prime is 442478923. The reversal of 442478902 is 209874244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115674 + ... + 119437.

It is an arithmetic number, because the mean of its divisors is an integer number (83053314).

Almost surely, 2^442478902 is an apocalyptic number.

442478902 is a deficient number, since it is larger than the sum of its proper divisors (221947610).

442478902 is a wasteful number, since it uses less digits than its factorization.

442478902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236054.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 442478902 is about 21035.1824807868. The cubic root of 442478902 is about 762.0161736520.

The spelling of 442478902 in words is "four hundred forty-two million, four hundred seventy-eight thousand, nine hundred two".