19032990 has 64 divisors (see below), whose sum is σ = 47900160. Its totient is φ = 4833920.

The previous prime is 19032971. The next prime is 19033009. The reversal of 19032990 is 9923091.

It is an interprime number because it is at equal distance from previous prime (19032971) and next prime (19033009).

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 31 ways as a sum of consecutive naturals, for example, 113887 + ... + 114053.

It is an arithmetic number, because the mean of its divisors is an integer number (748440).

Almost surely, 2^19032990 is an apocalyptic number.

19032990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19032990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23950080).

19032990 is an abundant number, since it is smaller than the sum of its proper divisors (28867170).

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

19032990 is a wasteful number, since it uses less digits than its factorization.

19032990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337.

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 19032990 is about 4362.6815148484. The cubic root of 19032990 is about 266.9945151702.

The spelling of 19032990 in words is "nineteen million, thirty-two thousand, nine hundred ninety".