20019300 has 72 divisors (see below), whose sum is σ = 66204096. Its totient is φ = 4575360.

The previous prime is 20019299. The next prime is 20019313. The reversal of 20019300 is 391002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20019300.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2667 + ... + 6866.

Almost surely, 2^20019300 is an apocalyptic number.

20019300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20019300 is an abundant number, since it is smaller than the sum of its proper divisors (46184796).

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

20019300 is a wasteful number, since it uses less digits than its factorization.

20019300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9557 (or 9550 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 20019300 is about 4474.2932402783. The cubic root of 20019300 is about 271.5290473553.

The spelling of 20019300 in words is "twenty million, nineteen thousand, three hundred".