870442344 has 48 divisors (see below), whose sum is σ = 2365833600. Its totient is φ = 289115424.

The previous prime is 870442327. The next prime is 870442393. The reversal of 870442344 is 443244078.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 870442299 and 870442308.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 984 + ... + 41735.

It is an arithmetic number, because the mean of its divisors is an integer number (49288200).

Almost surely, 2^870442344 is an apocalyptic number.

It is an amenable number.

870442344 is an abundant number, since it is smaller than the sum of its proper divisors (1495391256).

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

870442344 is a wasteful number, since it uses less digits than its factorization.

870442344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43014 (or 43007 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 36.

The square root of 870442344 is about 29503.2598876802. The cubic root of 870442344 is about 954.8020363950.

The spelling of 870442344 in words is "eight hundred seventy million, four hundred forty-two thousand, three hundred forty-four".