38889269 has 4 divisors (see below), whose sum is σ = 39526860. Its totient is φ = 38251680.

The previous prime is 38889259. The next prime is 38889271. The reversal of 38889269 is 96298883.

38889269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13235044 + 25654225 = 3638^2 + 5065^2 .

It is a cyclic number.

It is not a de Polignac number, because 38889269 - 2¹² = 38885173 is a prime.

It is a super-2 number, since 2×38889269² = 3024750486708722, which contains 22 as substring.

It is a Duffinian number.

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 38889269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38889209) 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 3 ways as a sum of consecutive naturals, for example, 318704 + ... + 318825.

It is an arithmetic number, because the mean of its divisors is an integer number (9881715).

Almost surely, 2^38889269 is an apocalyptic number.

It is an amenable number.

38889269 is a deficient number, since it is larger than the sum of its proper divisors (637591).

38889269 is an equidigital number, since it uses as much as digits as its factorization.

38889269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637590.

The product of its digits is 1492992, while the sum is 53.

The square root of 38889269 is about 6236.1261212391. The cubic root of 38889269 is about 338.7998894401.

The spelling of 38889269 in words is "thirty-eight million, eight hundred eighty-nine thousand, two hundred sixty-nine".