2998138 has 24 divisors (see below), whose sum is σ = 5329044. Its totient is φ = 1256640.

The previous prime is 2998133. The next prime is 2998139. The reversal of 2998138 is 8318992.

It can be written as a sum of positive squares in 2 ways, for example, as 2832489 + 165649 = 1683^2 + 407^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2998138.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2998133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2670 + ... + 3622.

2^2998138 is an apocalyptic number.

2998138 is a deficient number, since it is larger than the sum of its proper divisors (2330906).

2998138 is a wasteful number, since it uses less digits than its factorization.

2998138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990 (or 979 counting only the distinct ones).

The product of its digits is 31104, while the sum is 40.

The square root of 2998138 is about 1731.5132110383. The cubic root of 2998138 is about 144.1951123142.

It can be divided in two parts, 2998 and 138, that added together give a square (3136 = 56²).

The spelling of 2998138 in words is "two million, nine hundred ninety-eight thousand, one hundred thirty-eight".