20083456 has 36 divisors (see below), whose sum is σ = 42208600. Its totient is φ = 9510912.

The previous prime is 20083433. The next prime is 20083487. The reversal of 20083456 is 65438002.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2800 + ... + 6928.

Almost surely, 2^20083456 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 20083456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21104300).

20083456 is an abundant number, since it is smaller than the sum of its proper divisors (22125144).

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

20083456 is an equidigital number, since it uses as much as digits as its factorization.

20083456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4164 (or 4150 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 20083456 is about 4481.4569059626. The cubic root of 20083456 is about 271.8187951107.

The spelling of 20083456 in words is "twenty million, eighty-three thousand, four hundred fifty-six".