20983068 has 36 divisors (see below), whose sum is σ = 55833960. Its totient is φ = 6626016.

The previous prime is 20983051. The next prime is 20983073. The reversal of 20983068 is 86038902.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14655 + ... + 16022.

Almost surely, 2^20983068 is an apocalyptic number.

It is an amenable number.

20983068 is an abundant number, since it is smaller than the sum of its proper divisors (34850892).

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

20983068 is a wasteful number, since it uses less digits than its factorization.

20983068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30706 (or 30701 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 20983068 is about 4580.7278897573. The cubic root of 20983068 is about 275.8182483290.

The spelling of 20983068 in words is "twenty million, nine hundred eighty-three thousand, sixty-eight".