38189669 has 12 divisors (see below), whose sum is σ = 44525664. Its totient is φ = 32659704.

The previous prime is 38189659. The next prime is 38189687. The reversal of 38189669 is 96698183.

38189669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-38189669 is a prime.

It is a super-2 number, since 2×38189669² = 2916901636659122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38189609) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 39854 + ... + 40800.

It is an arithmetic number, because the mean of its divisors is an integer number (3710472).

Almost surely, 2^38189669 is an apocalyptic number.

It is an amenable number.

38189669 is a deficient number, since it is larger than the sum of its proper divisors (6335995).

38189669 is an equidigital number, since it uses as much as digits as its factorization.

38189669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784 (or 1777 counting only the distinct ones).

The product of its digits is 559872, while the sum is 50.

The square root of 38189669 is about 6179.7790413574. The cubic root of 38189669 is about 336.7559657028.

The spelling of 38189669 in words is "thirty-eight million, one hundred eighty-nine thousand, six hundred sixty-nine".