256098449 has 8 divisors (see below), whose sum is σ = 266103360. Its totient is φ = 246171856.

The previous prime is 256098439. The next prime is 256098461. The reversal of 256098449 is 944890652.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256098449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256098419) 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, 12869 + ... + 26034.

It is an arithmetic number, because the mean of its divisors is an integer number (33262920).

Almost surely, 2^256098449 is an apocalyptic number.

256098449 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

256098449 is a deficient number, since it is larger than the sum of its proper divisors (10004911).

256098449 is a wasteful number, since it uses less digits than its factorization.

256098449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39159.

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 256098449 is about 16003.0762355242. The cubic root of 256098449 is about 635.0418051713.

The spelling of 256098449 in words is "two hundred fifty-six million, ninety-eight thousand, four hundred forty-nine".