289675920 has 80 divisors (see below), whose sum is σ = 950832000. Its totient is φ = 72701952.

The previous prime is 289675913. The next prime is 289675927. The reversal of 289675920 is 29576982.

It is an interprime number because it is at equal distance from previous prime (289675913) and next prime (289675927).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 289675920.

It is not an unprimeable number, because it can be changed into a prime (289675927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31420 + ... + 39579.

It is an arithmetic number, because the mean of its divisors is an integer number (11885400).

Almost surely, 2^289675920 is an apocalyptic number.

289675920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289675920 is an abundant number, since it is smaller than the sum of its proper divisors (661156080).

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

289675920 is a wasteful number, since it uses less digits than its factorization.

289675920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71032 (or 71026 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 289675920 is about 17019.8683896204. The cubic root of 289675920 is about 661.6639373978.

The spelling of 289675920 in words is "two hundred eighty-nine million, six hundred seventy-five thousand, nine hundred twenty".