21334267340 has 24 divisors (see below), whose sum is σ = 46012826832. Its totient is φ = 8303065920.

The previous prime is 21334267319. The next prime is 21334267387. The reversal of 21334267340 is 4376243312.

It is a self number, because there is not a number n which added to its sum of digits gives 21334267340.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14414306 + ... + 14415785.

It is an arithmetic number, because the mean of its divisors is an integer number (1917201118).

Almost surely, 2^21334267340 is an apocalyptic number.

21334267340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21334267340 is an abundant number, since it is smaller than the sum of its proper divisors (24678559492).

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

21334267340 is a wasteful number, since it uses less digits than its factorization.

21334267340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28830137 (or 28830135 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 35.

The spelling of 21334267340 in words is "twenty-one billion, three hundred thirty-four million, two hundred sixty-seven thousand, three hundred forty".