228256406456 has 48 divisors (see below), whose sum is σ = 463523357160. Its totient is φ = 105328978560.

The previous prime is 228256406447. The next prime is 228256406461. The reversal of 228256406456 is 654604652822.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8871146 + ... + 8896838.

Almost surely, 2^228256406456 is an apocalyptic number.

228256406456 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

228256406456 is an abundant number, since it is smaller than the sum of its proper divisors (235266950704).

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

228256406456 is a wasteful number, since it uses less digits than its factorization.

228256406456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32296 (or 32279 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 50.

The spelling of 228256406456 in words is "two hundred twenty-eight billion, two hundred fifty-six million, four hundred six thousand, four hundred fifty-six".