2256402144 has 48 divisors (see below), whose sum is σ = 5994438912. Its totient is φ = 743069568.

The previous prime is 2256402119. The next prime is 2256402149. The reversal of 2256402144 is 4412046522.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256402149) 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, 133624 + ... + 149559.

It is an arithmetic number, because the mean of its divisors is an integer number (124884144).

Almost surely, 2^2256402144 is an apocalyptic number.

2256402144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2256402144 is an abundant number, since it is smaller than the sum of its proper divisors (3738036768).

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

2256402144 is a wasteful number, since it uses less digits than its factorization.

2256402144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283279 (or 283271 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 2256402144 is about 47501.6014887919. The cubic root of 2256402144 is about 1311.6123619339.

Adding to 2256402144 its reverse (4412046522), we get a palindrome (6668448666).

The spelling of 2256402144 in words is "two billion, two hundred fifty-six million, four hundred two thousand, one hundred forty-four".