2456642 has 16 divisors (see below), whose sum is σ = 3801600. Its totient is φ = 1190160.

The previous prime is 2456639. The next prime is 2456647. The reversal of 2456642 is 2466542.

It is not an unprimeable number, because it can be changed into a prime (2456647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12767 + ... + 12957.

It is an arithmetic number, because the mean of its divisors is an integer number (237600).

2^2456642 is an apocalyptic number.

2456642 is a deficient number, since it is larger than the sum of its proper divisors (1344958).

2456642 is a wasteful number, since it uses less digits than its factorization.

2456642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361.

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

The square root of 2456642 is about 1567.3678572690. The cubic root of 2456642 is about 134.9316892628.

The spelling of 2456642 in words is "two million, four hundred fifty-six thousand, six hundred forty-two".