289228490 has 16 divisors (see below), whose sum is σ = 525478752. Its totient is φ = 114609744.

The previous prime is 289228483. The next prime is 289228501. The reversal of 289228490 is 94822982.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134084 + ... + 136223.

It is an arithmetic number, because the mean of its divisors is an integer number (32842422).

Almost surely, 2^289228490 is an apocalyptic number.

289228490 is a deficient number, since it is larger than the sum of its proper divisors (236250262).

289228490 is a wasteful number, since it uses less digits than its factorization.

289228490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270421.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 289228490 is about 17006.7189663380. The cubic root of 289228490 is about 661.3230957535.

The spelling of 289228490 in words is "two hundred eighty-nine million, two hundred twenty-eight thousand, four hundred ninety".