298992438 has 16 divisors (see below), whose sum is σ = 664427760. Its totient is φ = 99664128.

The previous prime is 298992437. The next prime is 298992439. The reversal of 298992438 is 834299892.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (298992437) and next prime (298992439).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 5536897 = 298992438 / (2 + 9 + 8 + 9 + 9 + 2 + 4 + 3 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298992437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2768395 + ... + 2768502.

It is an arithmetic number, because the mean of its divisors is an integer number (41526735).

Almost surely, 2^298992438 is an apocalyptic number.

298992438 is an abundant number, since it is smaller than the sum of its proper divisors (365435322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

298992438 is a wasteful number, since it uses less digits than its factorization.

298992438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5536908 (or 5536902 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 298992438 is about 17291.3978035323. The cubic root of 298992438 is about 668.6826703927.

The spelling of 298992438 in words is "two hundred ninety-eight million, nine hundred ninety-two thousand, four hundred thirty-eight".