298149289 has 9 divisors (see below), whose sum is σ = 308631351. Its totient is φ = 288013560.

The previous prime is 298149283. The next prime is 298149317. The reversal of 298149289 is 982941892.

298149289 = 3² + 4² + ... + 963².

The square root of 298149289 is 17267.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 26163225 + 271986064 = 5115^2 + 16492^2 .

It is not a de Polignac number, because 298149289 - 2¹³ = 298141097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (298149283) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 534999 + ... + 535555.

Almost surely, 2^298149289 is an apocalyptic number.

298149289 is the 17267-th square number.

298149289 is the 8634-th centered octagonal number.

It is an amenable number.

298149289 is a deficient number, since it is larger than the sum of its proper divisors (10482062).

298149289 is an frugal number, since it uses more digits than its factorization.

298149289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 588 counting only the distinct ones).

The product of its digits is 746496, while the sum is 52.

The cubic root of 298149289 is about 668.0535241334.

Multiplying 298149289 by its product of digits (746496), we get a square (222567251641344 = 14918688²).

The spelling of 298149289 in words is "two hundred ninety-eight million, one hundred forty-nine thousand, two hundred eighty-nine".