2642456 has 16 divisors (see below), whose sum is σ = 4992840. Its totient is φ = 1311040.

The previous prime is 2642449. The next prime is 2642473. The reversal of 2642456 is 6542462.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 110 + ... + 2301.

2^2642456 is an apocalyptic number.

It is an amenable number.

2642456 is a deficient number, since it is larger than the sum of its proper divisors (2350384).

2642456 is a wasteful number, since it uses less digits than its factorization.

2642456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554 (or 2550 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 2642456 is about 1625.5632869870. The cubic root of 2642456 is about 138.2513099011.

The spelling of 2642456 in words is "two million, six hundred forty-two thousand, four hundred fifty-six".