20206998 has 24 divisors (see below), whose sum is σ = 50036688. Its totient is φ = 5773392.

The previous prime is 20206987. The next prime is 20207003. The reversal of 20206998 is 89960202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80061 + ... + 80312.

It is an arithmetic number, because the mean of its divisors is an integer number (2084862).

Almost surely, 2^20206998 is an apocalyptic number.

20206998 is an abundant number, since it is smaller than the sum of its proper divisors (29829690).

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

20206998 is a wasteful number, since it uses less digits than its factorization.

20206998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160388 (or 160385 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 20206998 is about 4495.2194607160. The cubic root of 20206998 is about 272.3750143656.

The spelling of 20206998 in words is "twenty million, two hundred six thousand, nine hundred ninety-eight".