38272513 has 8 divisors (see below), whose sum is σ = 38961000. Its totient is φ = 37588608.

The previous prime is 38272511. The next prime is 38272571. The reversal of 38272513 is 31527283.

38272513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3968064 + 34304449 = 1992^2 + 5857^2 .

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 38272513 - 2¹ = 38272511 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (38272511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18663 + ... + 20611.

It is an arithmetic number, because the mean of its divisors is an integer number (4870125).

Almost surely, 2^38272513 is an apocalyptic number.

It is an amenable number.

38272513 is a deficient number, since it is larger than the sum of its proper divisors (688487).

38272513 is a wasteful number, since it uses less digits than its factorization.

38272513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291.

The product of its digits is 10080, while the sum is 31.

The square root of 38272513 is about 6186.4782388690. The cubic root of 38272513 is about 336.9992955809. Note that the first 3 decimals are identical.

Adding to 38272513 its reverse (31527283), we get a palindrome (69799796).

The spelling of 38272513 in words is "thirty-eight million, two hundred seventy-two thousand, five hundred thirteen".