20860632 has 256 divisors, whose sum is σ = 72576000. Its totient is φ = 5474304.

The previous prime is 20860627. The next prime is 20860643. The reversal of 20860632 is 23606802.

20860632 is a `hidden beast` number, since 20 + 8 + 6 + 0 + 632 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 20860596 and 20860605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 906973 + ... + 906995.

It is an arithmetic number, because the mean of its divisors is an integer number (283500).

Almost surely, 2^20860632 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 20860632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36288000).

20860632 is an abundant number, since it is smaller than the sum of its proper divisors (51715368).

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

20860632 is a wasteful number, since it uses less digits than its factorization.

20860632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 77 counting only the distinct ones).

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

The square root of 20860632 is about 4567.3440860088. The cubic root of 20860632 is about 275.2807359006.

The spelling of 20860632 in words is "twenty million, eight hundred sixty thousand, six hundred thirty-two".