38860189 has 2 divisors, whose sum is σ = 38860190. Its totient is φ = 38860188.

The previous prime is 38860141. The next prime is 38860193. The reversal of 38860189 is 98106883.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26728900 + 12131289 = 5170^2 + 3483^2 .

It is a cyclic number.

It is not a de Polignac number, because 38860189 - 2⁷ = 38860061 is a prime.

It is a super-2 number, since 2×38860189² = 3020228578231442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38860139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19430094 + 19430095.

It is an arithmetic number, because the mean of its divisors is an integer number (19430095).

Almost surely, 2^38860189 is an apocalyptic number.

It is an amenable number.

38860189 is a deficient number, since it is larger than the sum of its proper divisors (1).

38860189 is an equidigital number, since it uses as much as digits as its factorization.

38860189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 38860189 is about 6233.7941095291. The cubic root of 38860189 is about 338.7154209154.

The spelling of 38860189 in words is "thirty-eight million, eight hundred sixty thousand, one hundred eighty-nine".