38516401 has 24 divisors (see below), whose sum is σ = 51464160. Its totient is φ = 28425600.

The previous prime is 38516381. The next prime is 38516447. The reversal of 38516401 is 10461583.

It is not a de Polignac number, because 38516401 - 2⁷ = 38516273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38516401.

It is not an unprimeable number, because it can be changed into a prime (38516501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8361 + ... + 12121.

It is an arithmetic number, because the mean of its divisors is an integer number (2144340).

Almost surely, 2^38516401 is an apocalyptic number.

It is an amenable number.

38516401 is a deficient number, since it is larger than the sum of its proper divisors (12947759).

38516401 is a wasteful number, since it uses less digits than its factorization.

38516401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3805 (or 3798 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 38516401 is about 6206.1583125151. The cubic root of 38516401 is about 337.7136125529.

Adding to 38516401 its reverse (10461583), we get a palindrome (48977984).

The spelling of 38516401 in words is "thirty-eight million, five hundred sixteen thousand, four hundred one".