19009080 has 80 divisors (see below), whose sum is σ = 63902520. Its totient is φ = 5068224.

The previous prime is 19009079. The next prime is 19009097. The reversal of 19009080 is 8090091.

It is a super-2 number, since 2×19009080² = 722690244892800, which contains 22 as substring.

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 19 ways as a sum of consecutive naturals, for example, 307 + ... + 6173.

Almost surely, 2^19009080 is an apocalyptic number.

19009080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19009080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31951260).

19009080 is an abundant number, since it is smaller than the sum of its proper divisors (44893440).

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

19009080 is a wasteful number, since it uses less digits than its factorization.

19009080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5890 (or 5877 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 19009080 is about 4359.9403665647. The cubic root of 19009080 is about 266.8826652728.

The spelling of 19009080 in words is "nineteen million, nine thousand, eighty".