2668634 has 8 divisors (see below), whose sum is σ = 4014228. Its totient is φ = 1330560.

The previous prime is 2668619. The next prime is 2668637. The reversal of 2668634 is 4368662.

It can be written as a sum of positive squares in 2 ways, for example, as 2544025 + 124609 = 1595^2 + 353^2 .

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

It is an Ulam number.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 2668594 and 2668603.

It is not an unprimeable number, because it can be changed into a prime (2668637) 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, 887 + ... + 2474.

2^2668634 is an apocalyptic number.

2668634 is a deficient number, since it is larger than the sum of its proper divisors (1345594).

2668634 is a wasteful number, since it uses less digits than its factorization.

2668634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3760.

The product of its digits is 41472, while the sum is 35.

The square root of 2668634 is about 1633.5954211493. The cubic root of 2668634 is about 138.7063483060.

The spelling of 2668634 in words is "two million, six hundred sixty-eight thousand, six hundred thirty-four".