289075164 has 24 divisors (see below), whose sum is σ = 770867328. Its totient is φ = 82592880.

The previous prime is 289075099. The next prime is 289075169. The reversal of 289075164 is 461570982.

289075164 = 2111² + 2112² + ... + 2173².

It is a super-4 number, since 4×289075164⁴ (a number of 35 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289075169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1720602 + ... + 1720769.

It is an arithmetic number, because the mean of its divisors is an integer number (32119472).

Almost surely, 2^289075164 is an apocalyptic number.

It is an amenable number.

289075164 is an abundant number, since it is smaller than the sum of its proper divisors (481792164).

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

289075164 is a wasteful number, since it uses less digits than its factorization.

289075164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441385 (or 3441383 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 289075164 is about 17002.2105621593. The cubic root of 289075164 is about 661.2062147506.

The spelling of 289075164 in words is "two hundred eighty-nine million, seventy-five thousand, one hundred sixty-four".