38868641 has 4 divisors (see below), whose sum is σ = 44421312. Its totient is φ = 33315972.

The previous prime is 38868629. The next prime is 38868649. The reversal of 38868641 is 14686883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38868641 - 2¹⁸ = 38606497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38868592 and 38868601.

It is not an unprimeable number, because it can be changed into a prime (38868649) 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, 2776325 + ... + 2776338.

It is an arithmetic number, because the mean of its divisors is an integer number (11105328).

Almost surely, 2^38868641 is an apocalyptic number.

It is an amenable number.

38868641 is a deficient number, since it is larger than the sum of its proper divisors (5552671).

38868641 is an equidigital number, since it uses as much as digits as its factorization.

38868641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5552670.

The product of its digits is 221184, while the sum is 44.

The square root of 38868641 is about 6234.4719904736. The cubic root of 38868641 is about 338.7399757386.

The spelling of 38868641 in words is "thirty-eight million, eight hundred sixty-eight thousand, six hundred forty-one".