21342114 has 24 divisors (see below), whose sum is σ = 48252672. Its totient is φ = 6804600.

The previous prime is 21342071. The next prime is 21342119. The reversal of 21342114 is 41124312.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (21342119) 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, 25362 + ... + 26189.

It is an arithmetic number, because the mean of its divisors is an integer number (2010528).

Almost surely, 2^21342114 is an apocalyptic number.

21342114 is an abundant number, since it is smaller than the sum of its proper divisors (26910558).

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

21342114 is a wasteful number, since it uses less digits than its factorization.

21342114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51582 (or 51579 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 21342114 is about 4619.7525907780. The cubic root of 21342114 is about 277.3825556099.

Adding to 21342114 its reverse (41124312), we get a palindrome (62466426).

The spelling of 21342114 in words is "twenty-one million, three hundred forty-two thousand, one hundred fourteen".