20658096 has 60 divisors (see below), whose sum is σ = 59241000. Its totient is φ = 6716160.

The previous prime is 20658061. The next prime is 20658097. The reversal of 20658096 is 69085602.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20658096.

It is not an unprimeable number, because it can be changed into a prime (20658097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4155 + ... + 7653.

It is an arithmetic number, because the mean of its divisors is an integer number (987350).

Almost surely, 2^20658096 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 20658096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29620500).

20658096 is an abundant number, since it is smaller than the sum of its proper divisors (38582904).

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

20658096 is a wasteful number, since it uses less digits than its factorization.

20658096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3554 (or 3545 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 20658096 is about 4545.1178202550. The cubic root of 20658096 is about 274.3869362269.

The spelling of 20658096 in words is "twenty million, six hundred fifty-eight thousand, ninety-six".