20198283 has 32 divisors (see below), whose sum is σ = 31726080. Its totient is φ = 11193600.

The previous prime is 20198279. The next prime is 20198287. The reversal of 20198283 is 38289102.

It is an interprime number because it is at equal distance from previous prime (20198279) and next prime (20198287).

It is not a de Polignac number, because 20198283 - 2² = 20198279 is a prime.

It is a super-2 number, since 2×20198283² = 815941272296178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20198287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 188716 + ... + 188822.

It is an arithmetic number, because the mean of its divisors is an integer number (991440).

Almost surely, 2^20198283 is an apocalyptic number.

20198283 is a deficient number, since it is larger than the sum of its proper divisors (11527797).

20198283 is a wasteful number, since it uses less digits than its factorization.

20198283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 20198283 is about 4494.2499930467. The cubic root of 20198283 is about 272.3358515371.

The spelling of 20198283 in words is "twenty million, one hundred ninety-eight thousand, two hundred eighty-three".