289234472 has 8 divisors (see below), whose sum is σ = 542314650. Its totient is φ = 144617232.

The previous prime is 289234471. The next prime is 289234493. The reversal of 289234472 is 274432982.

It can be written as a sum of positive squares in only one way, i.e., 172291876 + 116942596 = 13126^2 + 10814^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (289234471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18077147 + ... + 18077162.

Almost surely, 2^289234472 is an apocalyptic number.

It is an amenable number.

289234472 is a deficient number, since it is larger than the sum of its proper divisors (253080178).

289234472 is a wasteful number, since it uses less digits than its factorization.

289234472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36154315 (or 36154311 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 289234472 is about 17006.8948370947. The cubic root of 289234472 is about 661.3276550179.

The spelling of 289234472 in words is "two hundred eighty-nine million, two hundred thirty-four thousand, four hundred seventy-two".