256155414 has 8 divisors (see below), whose sum is σ = 512310840. Its totient is φ = 85385136.

The previous prime is 256155373. The next prime is 256155421. The reversal of 256155414 is 414551652.

It is a sphenic number, since it is the product of 3 distinct primes.

256155414 is an admirable number.

It is a super-2 number, since 2×256155414² = 131231192243022792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21346279 + ... + 21346290.

It is an arithmetic number, because the mean of its divisors is an integer number (64038855).

Almost surely, 2^256155414 is an apocalyptic number.

256155414 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

256155414 is a wasteful number, since it uses less digits than its factorization.

256155414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42692574.

The product of its digits is 24000, while the sum is 33.

The square root of 256155414 is about 16004.8559506170. The cubic root of 256155414 is about 635.0888866416.

It can be divided in two parts, 2561 and 55414, that added together give a palindrome (57975).

The spelling of 256155414 in words is "two hundred fifty-six million, one hundred fifty-five thousand, four hundred fourteen".