19319914 has 12 divisors (see below), whose sum is σ = 29616354. Its totient is φ = 9452264.

The previous prime is 19319893. The next prime is 19319917. The reversal of 19319914 is 41991391.

It can be written as a sum of positive squares in only one way, i.e., 15960025 + 3359889 = 3995^2 + 1833^2 .

It is not an unprimeable number, because it can be changed into a prime (19319917) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2232 + ... + 6604.

Almost surely, 2^19319914 is an apocalyptic number.

19319914 is a deficient number, since it is larger than the sum of its proper divisors (10296440).

19319914 is an equidigital number, since it uses as much as digits as its factorization.

19319914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4469 (or 4422 counting only the distinct ones).

The product of its digits is 8748, while the sum is 37.

The square root of 19319914 is about 4395.4424123176. The cubic root of 19319914 is about 268.3294844897.

The spelling of 19319914 in words is "nineteen million, three hundred nineteen thousand, nine hundred fourteen".