256780150 has 36 divisors (see below), whose sum is σ = 524989836. Its totient is φ = 93372400.

The previous prime is 256780103. The next prime is 256780151. The reversal of 256780150 is 51087652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256780151) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 15172 + ... + 27271.

It is an arithmetic number, because the mean of its divisors is an integer number (14583051).

Almost surely, 2^256780150 is an apocalyptic number.

256780150 is an abundant number, since it is smaller than the sum of its proper divisors (268209686).

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

256780150 is a wasteful number, since it uses less digits than its factorization.

256780150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42477 (or 42461 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 256780150 is about 16024.3611417117. The cubic root of 256780150 is about 635.6047723775.

The spelling of 256780150 in words is "two hundred fifty-six million, seven hundred eighty thousand, one hundred fifty".