289238364 has 60 divisors (see below), whose sum is σ = 758065000. Its totient is φ = 96165792.

The previous prime is 289238297. The next prime is 289238399. The reversal of 289238364 is 463832982.

289238364 is a `hidden beast` number, since 289 + 2 + 3 + 8 + 364 = 666.

Its product of digits (497664) is a multiple of the sum of its prime factors (2304).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 160782 + ... + 162570.

Almost surely, 2^289238364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289238364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379032500).

289238364 is an abundant number, since it is smaller than the sum of its proper divisors (468826636).

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

289238364 is a wasteful number, since it uses less digits than its factorization.

289238364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304 (or 2293 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 289238364 is about 17007.0092608901. The cubic root of 289238364 is about 661.3306213261.

The spelling of 289238364 in words is "two hundred eighty-nine million, two hundred thirty-eight thousand, three hundred sixty-four".