19032989 has 8 divisors (see below), whose sum is σ = 19460952. Its totient is φ = 18607680.

The previous prime is 19032971. The next prime is 19033009. The reversal of 19032989 is 98923091.

It can be written as a sum of positive squares in 4 ways, for example, as 284089 + 18748900 = 533^2 + 4330^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19032989 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 (19032919) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 21887 + ... + 22739.

It is an arithmetic number, because the mean of its divisors is an integer number (2432619).

Almost surely, 2^19032989 is an apocalyptic number.

It is an amenable number.

19032989 is a deficient number, since it is larger than the sum of its proper divisors (427963).

19032989 is an equidigital number, since it uses as much as digits as its factorization.

19032989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 19032989 is about 4362.6814002400. The cubic root of 19032989 is about 266.9945104942.

The spelling of 19032989 in words is "nineteen million, thirty-two thousand, nine hundred eighty-nine".