289621132 has 12 divisors (see below), whose sum is σ = 509240536. Its totient is φ = 144123840.

The previous prime is 289621103. The next prime is 289621133. The reversal of 289621132 is 231126982.

It is a super-2 number, since 2×289621132² = 167760800201922848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (289621133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170733 + ... + 172420.

Almost surely, 2^289621132 is an apocalyptic number.

It is an amenable number.

289621132 is a deficient number, since it is larger than the sum of its proper divisors (219619404).

289621132 is a wasteful number, since it uses less digits than its factorization.

289621132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343368 (or 343366 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 289621132 is about 17018.2587828485. The cubic root of 289621132 is about 661.6222200544.

The spelling of 289621132 in words is "two hundred eighty-nine million, six hundred twenty-one thousand, one hundred thirty-two".