298447838 has 32 divisors (see below), whose sum is σ = 494678016. Its totient is φ = 134182368.

The previous prime is 298447817. The next prime is 298447847. The reversal of 298447838 is 838744892.

It is a happy number.

It is a super-2 number, since 2×298447838² = 178142224013748488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 298447838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345395 + ... + 346257.

It is an arithmetic number, because the mean of its divisors is an integer number (15458688).

Almost surely, 2^298447838 is an apocalyptic number.

298447838 is a deficient number, since it is larger than the sum of its proper divisors (196230178).

298447838 is a wasteful number, since it uses less digits than its factorization.

298447838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208.

The product of its digits is 3096576, while the sum is 53.

The square root of 298447838 is about 17275.6429113362. The cubic root of 298447838 is about 668.2764327954.

The spelling of 298447838 in words is "two hundred ninety-eight million, four hundred forty-seven thousand, eight hundred thirty-eight".