20083400 has 24 divisors (see below), whose sum is σ = 46694370. Its totient is φ = 8033280.

The previous prime is 20083391. The next prime is 20083403. The reversal of 20083400 is 438002.

It can be written as a sum of positive squares in 3 ways, for example, as 9572836 + 10510564 = 3094^2 + 3242^2 .

It is not an unprimeable number, because it can be changed into a prime (20083403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50009 + ... + 50408.

Almost surely, 2^20083400 is an apocalyptic number.

20083400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20083400 is an abundant number, since it is smaller than the sum of its proper divisors (26610970).

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

20083400 is a wasteful number, since it uses less digits than its factorization.

20083400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100433 (or 100424 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 20083400 is about 4481.4506579901. The cubic root of 20083400 is about 271.8185424672.

The spelling of 20083400 in words is "twenty million, eighty-three thousand, four hundred".