19014989 has 12 divisors (see below), whose sum is σ = 22214268. Its totient is φ = 16228800.

The previous prime is 19014979. The next prime is 19015001. The reversal of 19014989 is 98941091.

It can be written as a sum of positive squares in 2 ways, for example, as 10778089 + 8236900 = 3283^2 + 2870^2 .

It is not a de Polignac number, because 19014989 - 2²⁴ = 2237773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19014979) 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, 13079 + ... + 14459.

It is an arithmetic number, because the mean of its divisors is an integer number (1851189).

Almost surely, 2^19014989 is an apocalyptic number.

It is an amenable number.

19014989 is a deficient number, since it is larger than the sum of its proper divisors (3199279).

19014989 is a wasteful number, since it uses less digits than its factorization.

19014989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676 (or 1669 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 19014989 is about 4360.6179607941. The cubic root of 19014989 is about 266.9103160287.

The spelling of 19014989 in words is "nineteen million, fourteen thousand, nine hundred eighty-nine".