19130780 has 24 divisors (see below), whose sum is σ = 42538608. Its totient is φ = 7202048.

The previous prime is 19130767. The next prime is 19130791. The reversal of 19130780 is 8703191.

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 7 ways as a sum of consecutive naturals, for example, 27794 + ... + 28473.

It is an arithmetic number, because the mean of its divisors is an integer number (1772442).

Almost surely, 2^19130780 is an apocalyptic number.

19130780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19130780 is an abundant number, since it is smaller than the sum of its proper divisors (23407828).

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

19130780 is a wasteful number, since it uses less digits than its factorization.

19130780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56293 (or 56291 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 19130780 is about 4373.8747124260. The cubic root of 19130780 is about 267.4509998465.

The spelling of 19130780 in words is "nineteen million, one hundred thirty thousand, seven hundred eighty".