21346324 has 12 divisors (see below), whose sum is σ = 37479904. Its totient is φ = 10637784.

The previous prime is 21346313. The next prime is 21346343. The reversal of 21346324 is 42364312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7464 + ... + 9919.

Almost surely, 2^21346324 is an apocalyptic number.

It is an amenable number.

21346324 is a deficient number, since it is larger than the sum of its proper divisors (16133580).

21346324 is a wasteful number, since it uses less digits than its factorization.

21346324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17694 (or 17692 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 21346324 is about 4620.2082204160. The cubic root of 21346324 is about 277.4007934748.

The spelling of 21346324 in words is "twenty-one million, three hundred forty-six thousand, three hundred twenty-four".