19663014 has 48 divisors (see below), whose sum is σ = 46752768. Its totient is φ = 5494608.

The previous prime is 19663003. The next prime is 19663019. The reversal of 19663014 is 41036691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19663019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13107 + ... + 14529.

It is an arithmetic number, because the mean of its divisors is an integer number (974016).

Almost surely, 2^19663014 is an apocalyptic number.

19663014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19663014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23376384).

19663014 is an abundant number, since it is smaller than the sum of its proper divisors (27089754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19663014 is a wasteful number, since it uses less digits than its factorization.

19663014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489 (or 1482 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 19663014 is about 4434.2997192341. The cubic root of 19663014 is about 269.9085835923.

The spelling of 19663014 in words is "nineteen million, six hundred sixty-three thousand, fourteen".