20340300 has 36 divisors (see below), whose sum is σ = 58852136. Its totient is φ = 5424000.

The previous prime is 20340283. The next prime is 20340301. The reversal of 20340300 is 304302.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (20340301) 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, 33601 + ... + 34200.

Almost surely, 2^20340300 is an apocalyptic number.

20340300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20340300 is an abundant number, since it is smaller than the sum of its proper divisors (38511836).

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

20340300 is a wasteful number, since it uses less digits than its factorization.

20340300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67818 (or 67811 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 20340300 is about 4510.0221728945. The cubic root of 20340300 is about 272.9726387799.

Adding to 20340300 its reverse (304302), we get a palindrome (20644602).

The spelling of 20340300 in words is "twenty million, three hundred forty thousand, three hundred".