20383700 has 36 divisors (see below), whose sum is σ = 44684640. Its totient is φ = 8070240.

The previous prime is 20383691. The next prime is 20383703. The reversal of 20383700 is 738302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20383703) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 9311 + ... + 11289.

It is an arithmetic number, because the mean of its divisors is an integer number (1241240).

Almost surely, 2^20383700 is an apocalyptic number.

20383700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20383700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22342320).

20383700 is an abundant number, since it is smaller than the sum of its proper divisors (24300940).

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

20383700 is a wasteful number, since it uses less digits than its factorization.

20383700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096 (or 2089 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 20383700 is about 4514.8311153353. The cubic root of 20383700 is about 273.1666476609.

The spelling of 20383700 in words is "twenty million, three hundred eighty-three thousand, seven hundred".