2256243400 has 48 divisors (see below), whose sum is σ = 5554348740. Its totient is φ = 849408000.

The previous prime is 2256243347. The next prime is 2256243401. The reversal of 2256243400 is 43426522.

It can be written as a sum of positive squares in 6 ways, for example, as 411197284 + 1845046116 = 20278^2 + 42954^2 .

It is not an unprimeable number, because it can be changed into a prime (2256243401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 328401 + ... + 335200.

Almost surely, 2^2256243400 is an apocalyptic number.

2256243400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2256243400 is an abundant number, since it is smaller than the sum of its proper divisors (3298105340).

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

2256243400 is a wasteful number, since it uses less digits than its factorization.

2256243400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663634 (or 663625 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 2256243400 is about 47499.9305262650. The cubic root of 2256243400 is about 1311.5816027189.

Adding to 2256243400 its reverse (43426522), we get a palindrome (2299669922).

The spelling of 2256243400 in words is "two billion, two hundred fifty-six million, two hundred forty-three thousand, four hundred".