20256298 has 8 divisors (see below), whose sum is σ = 30426660. Its totient is φ = 10114080.

The previous prime is 20256283. The next prime is 20256317. The reversal of 20256298 is 89265202.

It can be written as a sum of positive squares in 2 ways, for example, as 11512449 + 8743849 = 3393^2 + 2957^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5133 + ... + 8176.

Almost surely, 2^20256298 is an apocalyptic number.

20256298 is a deficient number, since it is larger than the sum of its proper divisors (10170362).

20256298 is a wasteful number, since it uses less digits than its factorization.

20256298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14072.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 20256298 is about 4500.6997233764. The cubic root of 20256298 is about 272.5963433428.

The spelling of 20256298 in words is "twenty million, two hundred fifty-six thousand, two hundred ninety-eight".