870220144 has 40 divisors (see below), whose sum is σ = 1746129312. Its totient is φ = 419877120.

The previous prime is 870220067. The next prime is 870220151. The reversal of 870220144 is 441022078.

870220144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43317 + ... + 60139.

Almost surely, 2^870220144 is an apocalyptic number.

It is an amenable number.

870220144 is an abundant number, since it is smaller than the sum of its proper divisors (875909168).

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

870220144 is a wasteful number, since it uses less digits than its factorization.

870220144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16945 (or 16939 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 870220144 is about 29499.4939617614. The cubic root of 870220144 is about 954.7207845775.

The spelling of 870220144 in words is "eight hundred seventy million, two hundred twenty thousand, one hundred forty-four".