256170378 has 16 divisors (see below), whose sum is σ = 524837376. Its totient is φ = 83307360.

The previous prime is 256170371. The next prime is 256170437. The reversal of 256170378 is 873071652.

256170378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (256170371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520426 + ... + 520917.

It is an arithmetic number, because the mean of its divisors is an integer number (32802336).

Almost surely, 2^256170378 is an apocalyptic number.

256170378 is an abundant number, since it is smaller than the sum of its proper divisors (268666998).

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

256170378 is a wasteful number, since it uses less digits than its factorization.

256170378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041389.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 256170378 is about 16005.3234269102. The cubic root of 256170378 is about 635.1012532031.

The spelling of 256170378 in words is "two hundred fifty-six million, one hundred seventy thousand, three hundred seventy-eight".