20361300 has 72 divisors (see below), whose sum is σ = 59850336. Its totient is φ = 5343360.

The previous prime is 20361281. The next prime is 20361301. The reversal of 20361300 is 316302.

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 20361300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20361301) 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 23 ways as a sum of consecutive naturals, for example, 19594 + ... + 20606.

Almost surely, 2^20361300 is an apocalyptic number.

20361300 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 20361300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29925168).

20361300 is an abundant number, since it is smaller than the sum of its proper divisors (39489036).

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

20361300 is a wasteful number, since it uses less digits than its factorization.

20361300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 20361300 is about 4512.3497204893. The cubic root of 20361300 is about 273.0665484693.

Adding to 20361300 its reverse (316302), we get a palindrome (20677602).

The spelling of 20361300 in words is "twenty million, three hundred sixty-one thousand, three hundred".