20942112 has 72 divisors (see below), whose sum is σ = 57053808. Its totient is φ = 6725760.

The previous prime is 20942101. The next prime is 20942149. The reversal of 20942112 is 21124902.

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, 92143 + ... + 92369.

It is an arithmetic number, because the mean of its divisors is an integer number (792414).

Almost surely, 2^20942112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20942112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28526904).

20942112 is an abundant number, since it is smaller than the sum of its proper divisors (36111696).

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

20942112 is a wasteful number, since it uses less digits than its factorization.

20942112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 20942112 is about 4576.2552376370. The cubic root of 20942112 is about 275.6386786266.

The spelling of 20942112 in words is "twenty million, nine hundred forty-two thousand, one hundred twelve".