4256448144 has 40 divisors (see below), whose sum is σ = 11841658752. Its totient is φ = 1309676160.

The previous prime is 4256448139. The next prime is 4256448197. The reversal of 4256448144 is 4418446524.

It is a super-2 number, since 2×4256448144² = 36234701605122089472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4256448096 and 4256448105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3409992 + ... + 3411239.

Almost surely, 2^4256448144 is an apocalyptic number.

It is an amenable number.

4256448144 is an abundant number, since it is smaller than the sum of its proper divisors (7585210608).

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

4256448144 is a wasteful number, since it uses less digits than its factorization.

4256448144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6821255 (or 6821249 counting only the distinct ones).

The product of its digits is 491520, while the sum is 42.

The square root of 4256448144 is about 65241.4603147416. The cubic root of 4256448144 is about 1620.6246821177.

The spelling of 4256448144 in words is "four billion, two hundred fifty-six million, four hundred forty-eight thousand, one hundred forty-four".