21348614 has 24 divisors (see below), whose sum is σ = 37490040. Its totient is φ = 9090816.

The previous prime is 21348601. The next prime is 21348629. The reversal of 21348614 is 41684312.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16934 + ... + 18150.

It is an arithmetic number, because the mean of its divisors is an integer number (1562085).

Almost surely, 2^21348614 is an apocalyptic number.

21348614 is a deficient number, since it is larger than the sum of its proper divisors (16141426).

21348614 is a wasteful number, since it uses less digits than its factorization.

21348614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412 (or 1405 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 21348614 is about 4620.4560380984. The cubic root of 21348614 is about 277.4107128268.

The spelling of 21348614 in words is "twenty-one million, three hundred forty-eight thousand, six hundred fourteen".