19690614 has 20 divisors (see below), whose sum is σ = 44121924. Its totient is φ = 6563484.

The previous prime is 19690609. The next prime is 19690621. The reversal of 19690614 is 41609691.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 60612 + ... + 60935.

Almost surely, 2^19690614 is an apocalyptic number.

19690614 is an abundant number, since it is smaller than the sum of its proper divisors (24431310).

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

19690614 is a wasteful number, since it uses less digits than its factorization.

19690614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121561 (or 121552 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 19690614 is about 4437.4107314965. The cubic root of 19690614 is about 270.0348103266.

The spelling of 19690614 in words is "nineteen million, six hundred ninety thousand, six hundred fourteen".