289149049 has 24 divisors (see below), whose sum is σ = 356801760. Its totient is φ = 232981056.

The previous prime is 289149041. The next prime is 289149061. The reversal of 289149049 is 940941982.

It is not a de Polignac number, because 289149049 - 2³ = 289149041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (289149041) 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, 126414 + ... + 128680.

It is an arithmetic number, because the mean of its divisors is an integer number (14866740).

Almost surely, 2^289149049 is an apocalyptic number.

It is an amenable number.

289149049 is a deficient number, since it is larger than the sum of its proper divisors (67652711).

289149049 is a wasteful number, since it uses less digits than its factorization.

289149049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437 (or 2430 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 289149049 is about 17004.3832290383. The cubic root of 289149049 is about 661.2625427299.

The spelling of 289149049 in words is "two hundred eighty-nine million, one hundred forty-nine thousand, forty-nine".