20198132 has 12 divisors (see below), whose sum is σ = 36169056. Its totient is φ = 9864120.

The previous prime is 20198111. The next prime is 20198147. The reversal of 20198132 is 23189102.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58544 + ... + 58887.

It is an arithmetic number, because the mean of its divisors is an integer number (3014088).

Almost surely, 2^20198132 is an apocalyptic number.

It is an amenable number.

20198132 is a deficient number, since it is larger than the sum of its proper divisors (15970924).

20198132 is a wasteful number, since it uses less digits than its factorization.

20198132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117478 (or 117476 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 20198132 is about 4494.2331937718. The cubic root of 20198132 is about 272.3351728851.

The spelling of 20198132 in words is "twenty million, one hundred ninety-eight thousand, one hundred thirty-two".