21314300 has 36 divisors (see below), whose sum is σ = 52861200. Its totient is φ = 7307520.

The previous prime is 21314299. The next prime is 21314303. The reversal of 21314300 is 341312.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21314303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14525 + ... + 15924.

Almost surely, 2^21314300 is an apocalyptic number.

21314300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21314300 is an abundant number, since it is smaller than the sum of its proper divisors (31546900).

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

21314300 is a wasteful number, since it uses less digits than its factorization.

21314300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30470 (or 30463 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 21314300 is about 4616.7412749687. The cubic root of 21314300 is about 277.2620040970.

Adding to 21314300 its reverse (341312), we get a palindrome (21655612).

The spelling of 21314300 in words is "twenty-one million, three hundred fourteen thousand, three hundred".