2644454056 has 16 divisors (see below), whose sum is σ = 4959793440. Its totient is φ = 1321842480.

The previous prime is 2644454053. The next prime is 2644454081. The reversal of 2644454056 is 6504544462.

It is a happy number.

It is a super-2 number, since 2×2644454056² = 13986274508589702272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2644454051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17716 + ... + 74851.

It is an arithmetic number, because the mean of its divisors is an integer number (309987090).

Almost surely, 2^2644454056 is an apocalyptic number.

It is an amenable number.

2644454056 is a deficient number, since it is larger than the sum of its proper divisors (2315339384).

2644454056 is a wasteful number, since it uses less digits than its factorization.

2644454056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96144 (or 96140 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

The square root of 2644454056 is about 51424.2555220783. The cubic root of 2644454056 is about 1382.8614671766.

The spelling of 2644454056 in words is "two billion, six hundred forty-four million, four hundred fifty-four thousand, fifty-six".