289252506 has 32 divisors (see below), whose sum is σ = 598468608. Its totient is φ = 93103920.

The previous prime is 289252489. The next prime is 289252507. The reversal of 289252506 is 605252982.

It is not an unprimeable number, because it can be changed into a prime (289252507) 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, 100321 + ... + 103163.

It is an arithmetic number, because the mean of its divisors is an integer number (18702144).

Almost surely, 2^289252506 is an apocalyptic number.

289252506 is an abundant number, since it is smaller than the sum of its proper divisors (309216102).

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

289252506 is a wasteful number, since it uses less digits than its factorization.

289252506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3426.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 289252506 is about 17007.4250255587. The cubic root of 289252506 is about 661.3413995012.

The spelling of 289252506 in words is "two hundred eighty-nine million, two hundred fifty-two thousand, five hundred six".