638041 has 8 divisors (see below), whose sum is σ = 660960. Its totient is φ = 615648.

The previous prime is 638023. The next prime is 638047. The reversal of 638041 is 140836.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 638041 - 2⁹ = 637529 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (638047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5910 + ... + 6016.

It is an arithmetic number, because the mean of its divisors is an integer number (82620).

2⁶³⁸⁰⁴¹ is an apocalyptic number.

It is an amenable number.

638041 is a deficient number, since it is larger than the sum of its proper divisors (22919).

638041 is a wasteful number, since it uses less digits than its factorization.

638041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 638041 is about 798.7746866295. The cubic root of 638041 is about 86.0893698687.

Adding to 638041 its reverse (140836), we get a palindrome (778877).

The spelling of 638041 in words is "six hundred thirty-eight thousand, forty-one".