289433452 has 36 divisors (see below), whose sum is σ = 636282640. Its totient is φ = 112764960.

The previous prime is 289433447. The next prime is 289433497. The reversal of 289433452 is 254334982.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39327 + ... + 46102.

Almost surely, 2^289433452 is an apocalyptic number.

289433452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

289433452 is an abundant number, since it is smaller than the sum of its proper divisors (346849188).

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

289433452 is a wasteful number, since it uses less digits than its factorization.

289433452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85462 (or 85449 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The square root of 289433452 is about 17012.7438116254. The cubic root of 289433452 is about 661.4792745802.

The spelling of 289433452 in words is "two hundred eighty-nine million, four hundred thirty-three thousand, four hundred fifty-two".