298598398 has 16 divisors (see below), whose sum is σ = 517162464. Its totient is φ = 126650880.

The previous prime is 298598383. The next prime is 298598411. The reversal of 298598398 is 893895892.

It is a super-2 number, since 2×298598398² = 178322006576332808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108583 + ... + 111298.

It is an arithmetic number, because the mean of its divisors is an integer number (32322654).

Almost surely, 2^298598398 is an apocalyptic number.

298598398 is a deficient number, since it is larger than the sum of its proper divisors (218564066).

298598398 is a wasteful number, since it uses less digits than its factorization.

298598398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219987.

The product of its digits is 11197440, while the sum is 61.

The square root of 298598398 is about 17279.9999421296. Note that the first 4 decimals coincide. The cubic root of 298598398 is about 668.3887905480.

The spelling of 298598398 in words is "two hundred ninety-eight million, five hundred ninety-eight thousand, three hundred ninety-eight".