190381885 has 8 divisors (see below), whose sum is σ = 231676416. Its totient is φ = 150160080.

The previous prime is 190381871. The next prime is 190381927. The reversal of 190381885 is 588183091.

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

It is not a de Polignac number, because 190381885 - 2²³ = 181993277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267789 + ... + 268498.

It is an arithmetic number, because the mean of its divisors is an integer number (28959552).

Almost surely, 2^190381885 is an apocalyptic number.

It is an amenable number.

190381885 is a deficient number, since it is larger than the sum of its proper divisors (41294531).

190381885 is an equidigital number, since it uses as much as digits as its factorization.

190381885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536363.

The product of its (nonzero) digits is 69120, while the sum is 43.

The square root of 190381885 is about 13797.8942233951. The cubic root of 190381885 is about 575.2746111101.

The spelling of 190381885 in words is "one hundred ninety million, three hundred eighty-one thousand, eight hundred eighty-five".