2402656 has 12 divisors (see below), whose sum is σ = 4730292. Its totient is φ = 1201312.

The previous prime is 2402651. The next prime is 2402663. The reversal of 2402656 is 6562042.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2402656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2402651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37510 + ... + 37573.

It is an arithmetic number, because the mean of its divisors is an integer number (394191).

2^2402656 is an apocalyptic number.

It is an amenable number.

2402656 is a deficient number, since it is larger than the sum of its proper divisors (2327636).

2402656 is an equidigital number, since it uses as much as digits as its factorization.

2402656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75093 (or 75085 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2402656 is about 1550.0503217638. The cubic root of 2402656 is about 133.9359610839.

Adding to 2402656 its reverse (6562042), we get a palindrome (8964698).

The spelling of 2402656 in words is "two million, four hundred two thousand, six hundred fifty-six".