256244198 has 16 divisors (see below), whose sum is σ = 446722560. Its totient is φ = 107957256.

The previous prime is 256244189. The next prime is 256244207. The reversal of 256244198 is 891442652.

It is an interprime number because it is at equal distance from previous prime (256244189) and next prime (256244207).

It is a super-2 number, since 2×256244198² = 131322178017326408, 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 7 ways as a sum of consecutive naturals, for example, 154286 + ... + 155937.

It is an arithmetic number, because the mean of its divisors is an integer number (27920160).

Almost surely, 2^256244198 is an apocalyptic number.

256244198 is a deficient number, since it is larger than the sum of its proper divisors (190478362).

256244198 is a wasteful number, since it uses less digits than its factorization.

256244198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310291.

The product of its digits is 138240, while the sum is 41.

The square root of 256244198 is about 16007.6293685230. The cubic root of 256244198 is about 635.1622525430.

The spelling of 256244198 in words is "two hundred fifty-six million, two hundred forty-four thousand, one hundred ninety-eight".