20297498 has 16 divisors (see below), whose sum is σ = 33847296. Its totient is φ = 9065520.

The previous prime is 20297483. The next prime is 20297527. The reversal of 20297498 is 89479202.

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, 11786 + ... + 13397.

It is an arithmetic number, because the mean of its divisors is an integer number (2115456).

Almost surely, 2^20297498 is an apocalyptic number.

20297498 is a deficient number, since it is larger than the sum of its proper divisors (13549798).

20297498 is a wasteful number, since it uses less digits than its factorization.

20297498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25229.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 20297498 is about 4505.2744644472. The cubic root of 20297498 is about 272.7810326278.

The spelling of 20297498 in words is "twenty million, two hundred ninety-seven thousand, four hundred ninety-eight".