256224156 has 24 divisors (see below), whose sum is σ = 607659024. Its totient is φ = 84007680.

The previous prime is 256224127. The next prime is 256224179. The reversal of 256224156 is 651422652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174285 + ... + 175748.

It is an arithmetic number, because the mean of its divisors is an integer number (25319126).

Almost surely, 2^256224156 is an apocalyptic number.

It is an amenable number.

256224156 is an abundant number, since it is smaller than the sum of its proper divisors (351434868).

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

256224156 is a wasteful number, since it uses less digits than its factorization.

256224156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350101 (or 350099 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 256224156 is about 16007.0033422874. The cubic root of 256224156 is about 635.1456924883.

The spelling of 256224156 in words is "two hundred fifty-six million, two hundred twenty-four thousand, one hundred fifty-six".