21340414200 has 96 divisors (see below), whose sum is σ = 75606053760. Its totient is φ = 4877808000.

The previous prime is 21340414171. The next prime is 21340414241. The reversal of 21340414200 is 241404312.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2536326 + ... + 2544725.

It is an arithmetic number, because the mean of its divisors is an integer number (787563060).

Almost surely, 2^21340414200 is an apocalyptic number.

21340414200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21340414200 is an abundant number, since it is smaller than the sum of its proper divisors (54265639560).

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

21340414200 is a wasteful number, since it uses less digits than its factorization.

21340414200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5081077 (or 5081068 counting only the distinct ones).

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

Adding to 21340414200 its reverse (241404312), we get a palindrome (21581818512).

The spelling of 21340414200 in words is "twenty-one billion, three hundred forty million, four hundred fourteen thousand, two hundred".