869732144 has 40 divisors (see below), whose sum is σ = 1802912880. Its totient is φ = 405216000.

The previous prime is 869732137. The next prime is 869732177. The reversal of 869732144 is 441237968.

It is a junction number, because it is equal to n+sod(n) for n = 869732095 and 869732104.

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, 4907 + ... + 41994.

It is an arithmetic number, because the mean of its divisors is an integer number (45072822).

Almost surely, 2^869732144 is an apocalyptic number.

It is an amenable number.

869732144 is an abundant number, since it is smaller than the sum of its proper divisors (933180736).

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

869732144 is a wasteful number, since it uses less digits than its factorization.

869732144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46989 (or 46983 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 869732144 is about 29491.2214735165. The cubic root of 869732144 is about 954.5422891846.

The spelling of 869732144 in words is "eight hundred sixty-nine million, seven hundred thirty-two thousand, one hundred forty-four".