19080144 has 80 divisors (see below), whose sum is σ = 56692800. Its totient is φ = 6136704.

The previous prime is 19080107. The next prime is 19080157. The reversal of 19080144 is 44108091.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11767 + ... + 13289.

It is an arithmetic number, because the mean of its divisors is an integer number (708660).

Almost surely, 2^19080144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19080144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28346400).

19080144 is an abundant number, since it is smaller than the sum of its proper divisors (37612656).

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

19080144 is a wasteful number, since it uses less digits than its factorization.

19080144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569 (or 1557 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 19080144 is about 4368.0824168049. The cubic root of 19080144 is about 267.2148252140.

The spelling of 19080144 in words is "nineteen million, eighty thousand, one hundred forty-four".