20204998 has 16 divisors (see below), whose sum is σ = 33203520. Its totient is φ = 9145000.

The previous prime is 20204981. The next prime is 20205001. The reversal of 20204998 is 89940202.

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, 3693 + ... + 7351.

It is an arithmetic number, because the mean of its divisors is an integer number (2075220).

Almost surely, 2^20204998 is an apocalyptic number.

20204998 is a deficient number, since it is larger than the sum of its proper divisors (12998522).

20204998 is a wasteful number, since it uses less digits than its factorization.

20204998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3923.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 20204998 is about 4494.9969966620. The cubic root of 20204998 is about 272.3660279078.

The spelling of 20204998 in words is "twenty million, two hundred four thousand, nine hundred ninety-eight".