21346514 has 16 divisors (see below), whose sum is σ = 37097088. Its totient is φ = 9022752.

The previous prime is 21346513. The next prime is 21346517. The reversal of 21346514 is 41564312.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21346513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9422 + ... + 11465.

It is an arithmetic number, because the mean of its divisors is an integer number (2318568).

Almost surely, 2^21346514 is an apocalyptic number.

21346514 is a deficient number, since it is larger than the sum of its proper divisors (15750574).

21346514 is a wasteful number, since it uses less digits than its factorization.

21346514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20969.

The product of its digits is 2880, while the sum is 26.

The square root of 21346514 is about 4620.2287822141. The cubic root of 21346514 is about 277.4016165048.

The spelling of 21346514 in words is "twenty-one million, three hundred forty-six thousand, five hundred fourteen".