2656930 has 16 divisors (see below), whose sum is σ = 5064120. Its totient is φ = 1000192.

The previous prime is 2656921. The next prime is 2656949. The reversal of 2656930 is 396562.

It can be written as a sum of positive squares in 4 ways, for example, as 2647129 + 9801 = 1627^2 + 99^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2656892 and 2656901.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7645 + ... + 7984.

2^2656930 is an apocalyptic number.

2656930 is a deficient number, since it is larger than the sum of its proper divisors (2407190).

2656930 is a wasteful number, since it uses less digits than its factorization.

2656930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15653.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 2656930 is about 1630.0092024280. The cubic root of 2656930 is about 138.5032733482.

The spelling of 2656930 in words is "two million, six hundred fifty-six thousand, nine hundred thirty".