20923196 has 18 divisors (see below), whose sum is σ = 42594048. Its totient is φ = 8967000.

The previous prime is 20923163. The next prime is 20923207. The reversal of 20923196 is 69132902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53180 + ... + 53571.

It is an arithmetic number, because the mean of its divisors is an integer number (2366336).

Almost surely, 2^20923196 is an apocalyptic number.

It is an amenable number.

20923196 is an abundant number, since it is smaller than the sum of its proper divisors (21670852).

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

20923196 is a wasteful number, since it uses less digits than its factorization.

20923196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106769 (or 106760 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 20923196 is about 4574.1880153750. The cubic root of 20923196 is about 275.5556632510. Note that the first 3 decimals are identical.

The spelling of 20923196 in words is "twenty million, nine hundred twenty-three thousand, one hundred ninety-six".