289130226 has 48 divisors (see below), whose sum is σ = 726422592. Its totient is φ = 75097440.

The previous prime is 289130221. The next prime is 289130227. The reversal of 289130226 is 622031982.

It is a happy number.

It is a super-2 number, since 2×289130226² = 167192575173622152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (289130221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23365 + ... + 33528.

It is an arithmetic number, because the mean of its divisors is an integer number (15133804).

Almost surely, 2^289130226 is an apocalyptic number.

289130226 is an abundant number, since it is smaller than the sum of its proper divisors (437292366).

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

289130226 is a wasteful number, since it uses less digits than its factorization.

289130226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56927 (or 56916 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 289130226 is about 17003.8297450898. The cubic root of 289130226 is about 661.2481934811.

The spelling of 289130226 in words is "two hundred eighty-nine million, one hundred thirty thousand, two hundred twenty-six".