381590169 has 8 divisors (see below), whose sum is σ = 512793600. Its totient is φ = 252390096.

The previous prime is 381590159. The next prime is 381590201. The reversal of 381590169 is 961095183.

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

It is a de Polignac number, because none of the positive numbers 2^k-381590169 is a prime.

It is a super-2 number, since 2×381590169² = 291222114154897122, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 381590169.

It is not an unprimeable number, because it can be changed into a prime (381590159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500394 + ... + 501155.

It is an arithmetic number, because the mean of its divisors is an integer number (64099200).

Almost surely, 2^381590169 is an apocalyptic number.

It is an amenable number.

381590169 is a deficient number, since it is larger than the sum of its proper divisors (131203431).

381590169 is a wasteful number, since it uses less digits than its factorization.

381590169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001679.

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 381590169 is about 19534.3330830617. Note that the first 3 decimals coincide. The cubic root of 381590169 is about 725.3245753984.

The spelling of 381590169 in words is "three hundred eighty-one million, five hundred ninety thousand, one hundred sixty-nine".