2698642 has 8 divisors (see below), whose sum is σ = 4055436. Its totient is φ = 1346832.

The previous prime is 2698609. The next prime is 2698649. The reversal of 2698642 is 2468962.

It can be written as a sum of positive squares in 2 ways, for example, as 2686321 + 12321 = 1639^2 + 111^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2698649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 748 + ... + 2440.

2^2698642 is an apocalyptic number.

2698642 is a deficient number, since it is larger than the sum of its proper divisors (1356794).

2698642 is a wasteful number, since it uses less digits than its factorization.

2698642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492.

The product of its digits is 41472, while the sum is 37.

The square root of 2698642 is about 1642.7543943024. The cubic root of 2698642 is about 139.2243156206.

It can be divided in two parts, 26986 and 42, that added together give a triangular number (27028 = T₂₃₂).

The spelling of 2698642 in words is "two million, six hundred ninety-eight thousand, six hundred forty-two".