2422656 has 64 divisors (see below), whose sum is σ = 7160400. Its totient is φ = 806400.

The previous prime is 2422643. The next prime is 2422657. The reversal of 2422656 is 6562242.

2422656 is a `hidden beast` number, since 2 + 4 + 2 + 2 + 656 = 666.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2422657) 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, 3106 + ... + 3806.

2^2422656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2422656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3580200).

2422656 is an abundant number, since it is smaller than the sum of its proper divisors (4737744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2422656 is an equidigital number, since it uses as much as digits as its factorization.

2422656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724 (or 706 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 2422656 is about 1556.4883552407. The cubic root of 2422656 is about 134.3065677158.

Adding to 2422656 its reverse (6562242), we get a palindrome (8984898).

The spelling of 2422656 in words is "two million, four hundred twenty-two thousand, six hundred fifty-six".