38450913 has 4 divisors (see below), whose sum is σ = 51267888. Its totient is φ = 25633940.

The previous prime is 38450911. The next prime is 38450933. The reversal of 38450913 is 31905483.

38450913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 38450913 - 2¹ = 38450911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38450911) 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 3 ways as a sum of consecutive naturals, for example, 6408483 + ... + 6408488.

It is an arithmetic number, because the mean of its divisors is an integer number (12816972).

Almost surely, 2^38450913 is an apocalyptic number.

It is an amenable number.

38450913 is a deficient number, since it is larger than the sum of its proper divisors (12816975).

38450913 is a wasteful number, since it uses less digits than its factorization.

38450913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12816974.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 38450913 is about 6200.8800181910. The cubic root of 38450913 is about 337.5221033535.

The spelling of 38450913 in words is "thirty-eight million, four hundred fifty thousand, nine hundred thirteen".