2656394 has 16 divisors (see below), whose sum is σ = 4354560. Its totient is φ = 1207920.

The previous prime is 2656391. The next prime is 2656399. The reversal of 2656394 is 4936562.

2656394 is nontrivially palindromic in base 4.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (2656391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1127 + ... + 2565.

It is an arithmetic number, because the mean of its divisors is an integer number (272160).

2^2656394 is an apocalyptic number.

2656394 is a deficient number, since it is larger than the sum of its proper divisors (1698166).

2656394 is a wasteful number, since it uses less digits than its factorization.

2656394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525.

The product of its digits is 38880, while the sum is 35.

The square root of 2656394 is about 1629.8447778853. The cubic root of 2656394 is about 138.4939589957.

The spelling of 2656394 in words is "two million, six hundred fifty-six thousand, three hundred ninety-four".