2256622320 has 40 divisors (see below), whose sum is σ = 6995529936. Its totient is φ = 601765888.

The previous prime is 2256622309. The next prime is 2256622321. The reversal of 2256622320 is 232266522.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256622321) 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, 4701057 + ... + 4701536.

Almost surely, 2^2256622320 is an apocalyptic number.

2256622320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2256622320 is an abundant number, since it is smaller than the sum of its proper divisors (4738907616).

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

2256622320 is a wasteful number, since it uses less digits than its factorization.

2256622320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9402609 (or 9402603 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 2256622320 is about 47503.9189962260. The cubic root of 2256622320 is about 1311.6550222034.

Adding to 2256622320 its reverse (232266522), we get a palindrome (2488888842).

The spelling of 2256622320 in words is "two billion, two hundred fifty-six million, six hundred twenty-two thousand, three hundred twenty".