256199996 has 48 divisors (see below), whose sum is σ = 527788800. Its totient is φ = 107688960.

The previous prime is 256199981. The next prime is 256200011. The reversal of 256199996 is 699991652.

It is an interprime number because it is at equal distance from previous prime (256199981) and next prime (256200011).

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, 22730 + ... + 32078.

It is an arithmetic number, because the mean of its divisors is an integer number (10995600).

Almost surely, 2^256199996 is an apocalyptic number.

256199996 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

256199996 is an abundant number, since it is smaller than the sum of its proper divisors (271588804).

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

256199996 is a wasteful number, since it uses less digits than its factorization.

256199996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9414 (or 9412 counting only the distinct ones).

The product of its digits is 2361960, while the sum is 56.

The square root of 256199996 is about 16006.2486548223. The cubic root of 256199996 is about 635.1257287158.

The spelling of 256199996 in words is "two hundred fifty-six million, one hundred ninety-nine thousand, nine hundred ninety-six".