20873112 has 64 divisors (see below), whose sum is σ = 56700000. Its totient is φ = 6365184.

The previous prime is 20873107. The next prime is 20873129. The reversal of 20873112 is 21137802.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46264 + ... + 46712.

Almost surely, 2^20873112 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 20873112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28350000).

20873112 is an abundant number, since it is smaller than the sum of its proper divisors (35826888).

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

20873112 is a wasteful number, since it uses less digits than its factorization.

20873112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 20873112 is about 4568.7101024250. The cubic root of 20873112 is about 275.3356210819.

The spelling of 20873112 in words is "twenty million, eight hundred seventy-three thousand, one hundred twelve".