20669324 has 24 divisors (see below), whose sum is σ = 39431280. Its totient is φ = 9422784.

The previous prime is 20669317. The next prime is 20669339. The reversal of 20669324 is 42396602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1922 + ... + 6710.

It is an arithmetic number, because the mean of its divisors is an integer number (1642970).

Almost surely, 2^20669324 is an apocalyptic number.

It is an amenable number.

20669324 is a deficient number, since it is larger than the sum of its proper divisors (18761956).

20669324 is a wasteful number, since it uses less digits than its factorization.

20669324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4889 (or 4887 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 20669324 is about 4546.3528239678. The cubic root of 20669324 is about 274.4366384281.

The spelling of 20669324 in words is "twenty million, six hundred sixty-nine thousand, three hundred twenty-four".