21440214300 has 36 divisors (see below), whose sum is σ = 62033687576. Its totient is φ = 5717390400.

The previous prime is 21440214281. The next prime is 21440214307. The reversal of 21440214300 is 341204412.

It is a super-3 number, since 3×21440214300³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21440214307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35733391 + ... + 35733990.

Almost surely, 2^21440214300 is an apocalyptic number.

21440214300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21440214300 is an abundant number, since it is smaller than the sum of its proper divisors (40593473276).

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

21440214300 is a wasteful number, since it uses less digits than its factorization.

21440214300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71467398 (or 71467391 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 21440214300 its reverse (341204412), we get a palindrome (21781418712).

The spelling of 21440214300 in words is "twenty-one billion, four hundred forty million, two hundred fourteen thousand, three hundred".