289768450 has 12 divisors (see below), whose sum is σ = 538969410. Its totient is φ = 115907360.

The previous prime is 289768433. The next prime is 289768469. The reversal of 289768450 is 54867982.

It can be written as a sum of positive squares in 3 ways, for example, as 258598561 + 31169889 = 16081^2 + 5583^2 .

It is a junction number, because it is equal to n+sod(n) for n = 289768394 and 289768403.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2897635 + ... + 2897734.

Almost surely, 2^289768450 is an apocalyptic number.

289768450 is a deficient number, since it is larger than the sum of its proper divisors (249200960).

289768450 is a wasteful number, since it uses less digits than its factorization.

289768450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5795381 (or 5795376 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 289768450 is about 17022.5864662219. The cubic root of 289768450 is about 661.7343807706.

The spelling of 289768450 in words is "two hundred eighty-nine million, seven hundred sixty-eight thousand, four hundred fifty".