20860768 has 48 divisors (see below), whose sum is σ = 44924544. Its totient is φ = 9492480.

The previous prime is 20860757. The next prime is 20860781. The reversal of 20860768 is 86706802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16246 + ... + 17482.

It is an arithmetic number, because the mean of its divisors is an integer number (935928).

Almost surely, 2^20860768 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 20860768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22462272).

20860768 is an abundant number, since it is smaller than the sum of its proper divisors (24063776).

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

20860768 is a wasteful number, since it uses less digits than its factorization.

20860768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 20860768 is about 4567.3589742870. The cubic root of 20860768 is about 275.2813341263.

The spelling of 20860768 in words is "twenty million, eight hundred sixty thousand, seven hundred sixty-eight".