19944850 has 24 divisors (see below), whose sum is σ = 38103588. Its totient is φ = 7761600.

The previous prime is 19944833. The next prime is 19944857. The reversal of 19944850 is 5844991.

It can be written as a sum of positive squares in 6 ways, for example, as 9492561 + 10452289 = 3081^2 + 3233^2 .

It is not an unprimeable number, because it can be changed into a prime (19944857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3541 + ... + 7240.

Almost surely, 2^19944850 is an apocalyptic number.

19944850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19944850 is a deficient number, since it is larger than the sum of its proper divisors (18158738).

19944850 is a wasteful number, since it uses less digits than its factorization.

19944850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10830 (or 10825 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 19944850 is about 4465.9657410240. The cubic root of 19944850 is about 271.1920317560.

The spelling of 19944850 in words is "nineteen million, nine hundred forty-four thousand, eight hundred fifty".