870232388 has 12 divisors (see below), whose sum is σ = 1540018620. Its totient is φ = 430227072.

The previous prime is 870232369. The next prime is 870232417. The reversal of 870232388 is 883232078.

It can be written as a sum of positive squares in 2 ways, for example, as 205005124 + 665227264 = 14318^2 + 25792^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1221881 + ... + 1222592.

It is an arithmetic number, because the mean of its divisors is an integer number (128334885).

Almost surely, 2^870232388 is an apocalyptic number.

It is an amenable number.

870232388 is a deficient number, since it is larger than the sum of its proper divisors (669786232).

870232388 is a wasteful number, since it uses less digits than its factorization.

870232388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444566 (or 2444564 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 870232388 is about 29499.7014900151. The cubic root of 870232388 is about 954.7252621979.

The spelling of 870232388 in words is "eight hundred seventy million, two hundred thirty-two thousand, three hundred eighty-eight".