2256620236 has 12 divisors (see below), whose sum is σ = 4252861312. Its totient is φ = 1041517008.

The previous prime is 2256620213. The next prime is 2256620257. The reversal of 2256620236 is 6320266522.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21698220 + ... + 21698323.

Almost surely, 2^2256620236 is an apocalyptic number.

2256620236 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2256620236 is a deficient number, since it is larger than the sum of its proper divisors (1996241076).

2256620236 is a wasteful number, since it uses less digits than its factorization.

2256620236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43396560 (or 43396558 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 2256620236 is about 47503.8970611886. The cubic root of 2256620236 is about 1311.6546184303.

Adding to 2256620236 its reverse (6320266522), we get a palindrome (8576886758).

The spelling of 2256620236 in words is "two billion, two hundred fifty-six million, six hundred twenty thousand, two hundred thirty-six".