2698138 has 8 divisors (see below), whose sum is σ = 4285332. Its totient is φ = 1269696.

The previous prime is 2698109. The next prime is 2698159. The reversal of 2698138 is 8318962.

2698138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2634129 + 64009 = 1623^2 + 253^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2698097 and 2698106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39645 + ... + 39712.

2^2698138 is an apocalyptic number.

2698138 is a deficient number, since it is larger than the sum of its proper divisors (1587194).

2698138 is a wasteful number, since it uses less digits than its factorization.

2698138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79376.

The product of its digits is 20736, while the sum is 37.

The square root of 2698138 is about 1642.6009862410. The cubic root of 2698138 is about 139.2156478754.

The spelling of 2698138 in words is "two million, six hundred ninety-eight thousand, one hundred thirty-eight".