19669714 has 16 divisors (see below), whose sum is σ = 32319000. Its totient is φ = 8936704.

The previous prime is 19669687. The next prime is 19669733. The reversal of 19669714 is 41796691.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15800625 + 3869089 = 3975^2 + 1967^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8989 + ... + 10960.

Almost surely, 2^19669714 is an apocalyptic number.

19669714 is a deficient number, since it is larger than the sum of its proper divisors (12649286).

19669714 is a wasteful number, since it uses less digits than its factorization.

19669714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19997.

The product of its digits is 81648, while the sum is 43.

The square root of 19669714 is about 4435.0551293079. The cubic root of 19669714 is about 269.9392364405.

The spelling of 19669714 in words is "nineteen million, six hundred sixty-nine thousand, seven hundred fourteen".