20826120 has 64 divisors (see below), whose sum is σ = 71406720. Its totient is φ = 4760064.

The previous prime is 20826107. The next prime is 20826121. The reversal of 20826120 is 2162802.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (20826121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11557 + ... + 13236.

It is an arithmetic number, because the mean of its divisors is an integer number (1115730).

Almost surely, 2^20826120 is an apocalyptic number.

20826120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20826120 is an abundant number, since it is smaller than the sum of its proper divisors (50580600).

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

20826120 is a wasteful number, since it uses less digits than its factorization.

20826120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24814 (or 24810 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 20826120 is about 4563.5643963902. The cubic root of 20826120 is about 275.1288432061.

Adding to 20826120 its reverse (2162802), we get a palindrome (22988922).

The spelling of 20826120 in words is "twenty million, eight hundred twenty-six thousand, one hundred twenty".