2256235478 has 32 divisors (see below), whose sum is σ = 4178952000. Its totient is φ = 910073472.

The previous prime is 2256235477. The next prime is 2256235481. The reversal of 2256235478 is 8745326522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256235477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85073 + ... + 108396.

It is an arithmetic number, because the mean of its divisors is an integer number (130592250).

Almost surely, 2^2256235478 is an apocalyptic number.

2256235478 is a deficient number, since it is larger than the sum of its proper divisors (1922716522).

2256235478 is a wasteful number, since it uses less digits than its factorization.

2256235478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193509 (or 193495 counting only the distinct ones).

The product of its digits is 806400, while the sum is 44.

The square root of 2256235478 is about 47499.8471365961. The cubic root of 2256235478 is about 1311.5800676656.

The spelling of 2256235478 in words is "two billion, two hundred fifty-six million, two hundred thirty-five thousand, four hundred seventy-eight".