442347870 has 16 divisors (see below), whose sum is σ = 1061634960. Its totient is φ = 117959424.

The previous prime is 442347847. The next prime is 442347881. The reversal of 442347870 is 78743244.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 7372435 + ... + 7372494.

It is an arithmetic number, because the mean of its divisors is an integer number (66352185).

Almost surely, 2^442347870 is an apocalyptic number.

442347870 is an abundant number, since it is smaller than the sum of its proper divisors (619287090).

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

442347870 is a wasteful number, since it uses less digits than its factorization.

442347870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14744939.

The product of its (nonzero) digits is 150528, while the sum is 39.

The square root of 442347870 is about 21032.0676586968. The cubic root of 442347870 is about 761.9409471945.

The spelling of 442347870 in words is "four hundred forty-two million, three hundred forty-seven thousand, eight hundred seventy".