289132481 has 24 divisors (see below), whose sum is σ = 352556064. Its totient is φ = 234311040.

The previous prime is 289132463. The next prime is 289132489. The reversal of 289132481 is 184231982.

It is not a de Polignac number, because 289132481 - 2¹⁰ = 289131457 is a prime.

It is a super-2 number, since 2×289132481² = 167195183138430722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (289132489) 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, 65366 + ... + 69648.

It is an arithmetic number, because the mean of its divisors is an integer number (14689836).

Almost surely, 2^289132481 is an apocalyptic number.

It is an amenable number.

289132481 is a deficient number, since it is larger than the sum of its proper divisors (63423583).

289132481 is a wasteful number, since it uses less digits than its factorization.

289132481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4349 (or 4330 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 289132481 is about 17003.8960535520. The cubic root of 289132481 is about 661.2499125575.

The spelling of 289132481 in words is "two hundred eighty-nine million, one hundred thirty-two thousand, four hundred eighty-one".