256442150 has 24 divisors (see below), whose sum is σ = 478220880. Its totient is φ = 102310560.

The previous prime is 256442149. The next prime is 256442171. The reversal of 256442150 is 51244652.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13391 + ... + 26309.

It is an arithmetic number, because the mean of its divisors is an integer number (19925870).

Almost surely, 2^256442150 is an apocalyptic number.

256442150 is a deficient number, since it is larger than the sum of its proper divisors (221778730).

256442150 is a wasteful number, since it uses less digits than its factorization.

256442150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13328 (or 13323 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 256442150 is about 16013.8112265632. The cubic root of 256442150 is about 635.3257674982.

The spelling of 256442150 in words is "two hundred fifty-six million, four hundred forty-two thousand, one hundred fifty".