870242142 has 64 divisors (see below), whose sum is σ = 2284185600. Its totient is φ = 214138080.

The previous prime is 870242119. The next prime is 870242171. The reversal of 870242142 is 241242078.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40792 + ... + 58347.

It is an arithmetic number, because the mean of its divisors is an integer number (35690400).

Almost surely, 2^870242142 is an apocalyptic number.

870242142 is an abundant number, since it is smaller than the sum of its proper divisors (1413943458).

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

870242142 is a wasteful number, since it uses less digits than its factorization.

870242142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99181.

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 870242142 is about 29499.8668132587. The cubic root of 870242142 is about 954.7288291974.

The spelling of 870242142 in words is "eight hundred seventy million, two hundred forty-two thousand, one hundred forty-two".