38956189 has 4 divisors (see below), whose sum is σ = 39072124. Its totient is φ = 38840256.

The previous prime is 38956187. The next prime is 38956201. The reversal of 38956189 is 98165983.

38956189 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, and also an emirpimes, since its reverse is a distinct semiprime: 98165983 = 503 ⋅195161.

It can be written as a sum of positive squares in 2 ways, for example, as 26936100 + 12020089 = 5190^2 + 3467^2 .

It is a cyclic number.

It is not a de Polignac number, because 38956189 - 2¹ = 38956187 is a prime.

It is a super-2 number, since 2×38956189² = 3035169322807442, 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 (38956187) 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, 57462 + ... + 58135.

It is an arithmetic number, because the mean of its divisors is an integer number (9768031).

Almost surely, 2^38956189 is an apocalyptic number.

It is an amenable number.

38956189 is a deficient number, since it is larger than the sum of its proper divisors (115935).

38956189 is a wasteful number, since it uses less digits than its factorization.

38956189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115934.

The product of its digits is 466560, while the sum is 49.

The square root of 38956189 is about 6241.4893254735. The cubic root of 38956189 is about 338.9941117949.

The spelling of 38956189 in words is "thirty-eight million, nine hundred fifty-six thousand, one hundred eighty-nine".