23421300 has 144 divisors (see below), whose sum is σ = 81661440. Its totient is φ = 5063040.

The previous prime is 23421287. The next prime is 23421311. The reversal of 23421300 is 312432.

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 23421300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39607 + ... + 40193.

Almost surely, 2^23421300 is an apocalyptic number.

23421300 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 23421300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40830720).

23421300 is an abundant number, since it is smaller than the sum of its proper divisors (58240140).

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

23421300 is a wasteful number, since it uses less digits than its factorization.

23421300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 23421300 is about 4839.5557647371. Note that the first 3 decimals coincide. The cubic root of 23421300 is about 286.1126099006.

Adding to 23421300 its reverse (312432), we get a palindrome (23733732).

The spelling of 23421300 in words is "twenty-three million, four hundred twenty-one thousand, three hundred".