20630862 has 120 divisors (see below), whose sum is σ = 56610576. Its totient is φ = 5588352.

The previous prime is 20630851. The next prime is 20630879. The reversal of 20630862 is 26803602.

20630862 is a `hidden beast` number, since 20 + 630 + 8 + 6 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 182518 + ... + 182630.

Almost surely, 2^20630862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20630862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28305288).

20630862 is an abundant number, since it is smaller than the sum of its proper divisors (35979714).

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

20630862 is a wasteful number, since it uses less digits than its factorization.

20630862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 20630862 is about 4542.1208702543. The cubic root of 20630862 is about 274.2663065230.

The spelling of 20630862 in words is "twenty million, six hundred thirty thousand, eight hundred sixty-two".