20198232 has 48 divisors (see below), whose sum is σ = 57086640. Its totient is φ = 6439488.

The previous prime is 20198231. The next prime is 20198251. The reversal of 20198232 is 23289102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20198196 and 20198205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20198231) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4443 + ... + 7754.

It is an arithmetic number, because the mean of its divisors is an integer number (1189305).

Almost surely, 2^20198232 is an apocalyptic number.

It is an amenable number.

20198232 is an abundant number, since it is smaller than the sum of its proper divisors (36888408).

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

20198232 is a wasteful number, since it uses less digits than its factorization.

20198232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12232 (or 12225 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 20198232 is about 4494.2443191264. The cubic root of 20198232 is about 272.3356223239.

The spelling of 20198232 in words is "twenty million, one hundred ninety-eight thousand, two hundred thirty-two".