19944814 has 8 divisors (see below), whose sum is σ = 30296160. Its totient is φ = 9846096.

The previous prime is 19944797. The next prime is 19944829. The reversal of 19944814 is 41844991.

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

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, 62959 + ... + 63274.

It is an arithmetic number, because the mean of its divisors is an integer number (3787020).

Almost surely, 2^19944814 is an apocalyptic number.

19944814 is a deficient number, since it is larger than the sum of its proper divisors (10351346).

19944814 is a wasteful number, since it uses less digits than its factorization.

19944814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126314.

The product of its digits is 41472, while the sum is 40.

The square root of 19944814 is about 4465.9617105390. The cubic root of 19944814 is about 271.1918685907.

The spelling of 19944814 in words is "nineteen million, nine hundred forty-four thousand, eight hundred fourteen".