20331300 has 144 divisors (see below), whose sum is σ = 65870784. Its totient is φ = 4800000.

The previous prime is 20331281. The next prime is 20331301. The reversal of 20331300 is 313302.

It is a happy number.

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 (20331301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 201250 + ... + 201350.

It is an arithmetic number, because the mean of its divisors is an integer number (457436).

Almost surely, 2^20331300 is an apocalyptic number.

20331300 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 20331300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32935392).

20331300 is an abundant number, since it is smaller than the sum of its proper divisors (45539484).

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

20331300 is a wasteful number, since it uses less digits than its factorization.

20331300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 20331300 is about 4509.0242846984. The cubic root of 20331300 is about 272.9323719830.

Adding to 20331300 its reverse (313302), we get a palindrome (20644602).

It can be divided in two parts, 2033 and 1300, that added together give a palindrome (3333).

The spelling of 20331300 in words is "twenty million, three hundred thirty-one thousand, three hundred".