20597298 has 16 divisors (see below), whose sum is σ = 41492640. Its totient is φ = 6816096.

The previous prime is 20597281. The next prime is 20597323. The reversal of 20597298 is 89279502.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 11515 + ... + 13182.

It is an arithmetic number, because the mean of its divisors is an integer number (2593290).

Almost surely, 2^20597298 is an apocalyptic number.

20597298 is an abundant number, since it is smaller than the sum of its proper divisors (20895342).

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

20597298 is a wasteful number, since it uses less digits than its factorization.

20597298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24841.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 20597298 is about 4538.4246165382. The cubic root of 20597298 is about 274.1174927231.

The spelling of 20597298 in words is "twenty million, five hundred ninety-seven thousand, two hundred ninety-eight".