38458081 has 4 divisors (see below), whose sum is σ = 38798532. Its totient is φ = 38117632.

The previous prime is 38458009. The next prime is 38458087. The reversal of 38458081 is 18085483.

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 216225 + 38241856 = 465^2 + 6184^2 .

It is a cyclic number.

It is not a de Polignac number, because 38458081 - 2⁹ = 38457569 is a prime.

It is a super-2 number, since 2×38458081² = 2958047988405122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38458081.

It is not an unprimeable number, because it can be changed into a prime (38458087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170056 + ... + 170281.

It is an arithmetic number, because the mean of its divisors is an integer number (9699633).

Almost surely, 2^38458081 is an apocalyptic number.

It is an amenable number.

38458081 is a deficient number, since it is larger than the sum of its proper divisors (340451).

38458081 is a wasteful number, since it uses less digits than its factorization.

38458081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340450.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 38458081 is about 6201.4579737349. The cubic root of 38458081 is about 337.5430756176.

The spelling of 38458081 in words is "thirty-eight million, four hundred fifty-eight thousand, eighty-one".