19885130 has 8 divisors (see below), whose sum is σ = 35793252. Its totient is φ = 7954048.

The previous prime is 19885111. The next prime is 19885141. The reversal of 19885130 is 3158891.

It can be written as a sum of positive squares in 2 ways, for example, as 19545241 + 339889 = 4421^2 + 583^2 .

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

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 994247 + ... + 994266.

Almost surely, 2^19885130 is an apocalyptic number.

19885130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19885130 is a deficient number, since it is larger than the sum of its proper divisors (15908122).

19885130 is a wasteful number, since it uses less digits than its factorization.

19885130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988520.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 19885130 is about 4459.2746046863. The cubic root of 19885130 is about 270.9210883017.

The spelling of 19885130 in words is "nineteen million, eight hundred eighty-five thousand, one hundred thirty".