869449146 has 24 divisors (see below), whose sum is σ = 1776710400. Its totient is φ = 283645752.

The previous prime is 869449129. The next prime is 869449159. The reversal of 869449146 is 641944968.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19546 + ... + 46053.

It is an arithmetic number, because the mean of its divisors is an integer number (74029600).

Almost surely, 2^869449146 is an apocalyptic number.

869449146 is an abundant number, since it is smaller than the sum of its proper divisors (907261254).

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

869449146 is a wasteful number, since it uses less digits than its factorization.

869449146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65698 (or 65651 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 51.

The square root of 869449146 is about 29486.4230791054. The cubic root of 869449146 is about 954.4387466303.

The spelling of 869449146 in words is "eight hundred sixty-nine million, four hundred forty-nine thousand, one hundred forty-six".