256398614 has 8 divisors (see below), whose sum is σ = 384902928. Its totient is φ = 128097640.

The previous prime is 256398589. The next prime is 256398619. The reversal of 256398614 is 416893652.

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

It is a super-2 number, since 2×256398614² = 131480498522241992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256398619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47642 + ... + 52749.

It is an arithmetic number, because the mean of its divisors is an integer number (48112866).

Almost surely, 2^256398614 is an apocalyptic number.

256398614 is a deficient number, since it is larger than the sum of its proper divisors (128504314).

256398614 is a wasteful number, since it uses less digits than its factorization.

256398614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101670.

The product of its digits is 311040, while the sum is 44.

The square root of 256398614 is about 16012.4518422383. The cubic root of 256398614 is about 635.2898125300.

The spelling of 256398614 in words is "two hundred fifty-six million, three hundred ninety-eight thousand, six hundred fourteen".