19924966 has 8 divisors (see below), whose sum is σ = 29915424. Its totient is φ = 9953160.

The previous prime is 19924921. The next prime is 19924967. The reversal of 19924966 is 66942991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19924967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1585 + ... + 6508.

It is an arithmetic number, because the mean of its divisors is an integer number (3739428).

Almost surely, 2^19924966 is an apocalyptic number.

19924966 is a deficient number, since it is larger than the sum of its proper divisors (9990458).

19924966 is a wasteful number, since it uses less digits than its factorization.

19924966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9326.

The product of its digits is 209952, while the sum is 46.

The square root of 19924966 is about 4463.7390156684. The cubic root of 19924966 is about 271.1018802410.

The spelling of 19924966 in words is "nineteen million, nine hundred twenty-four thousand, nine hundred sixty-six".