256186230 has 32 divisors (see below), whose sum is σ = 615513600. Its totient is φ = 68242272.

The previous prime is 256186219. The next prime is 256186241. The reversal of 256186230 is 32681652.

It is an interprime number because it is at equal distance from previous prime (256186219) and next prime (256186241).

It is a super-2 number, since 2×256186230² = 131262768883225800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 256186191 and 256186200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27061 + ... + 35279.

It is an arithmetic number, because the mean of its divisors is an integer number (19234800).

Almost surely, 2^256186230 is an apocalyptic number.

256186230 is an abundant number, since it is smaller than the sum of its proper divisors (359327370).

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

256186230 is a wasteful number, since it uses less digits than its factorization.

256186230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9268.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 256186230 is about 16005.8186294860. The cubic root of 256186230 is about 635.1143531011.

The spelling of 256186230 in words is "two hundred fifty-six million, one hundred eighty-six thousand, two hundred thirty".