38393545 has 4 divisors (see below), whose sum is σ = 46072260. Its totient is φ = 30714832.

The previous prime is 38393543. The next prime is 38393549. The reversal of 38393545 is 54539383.

38393545 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.

It can be written as a sum of positive squares in 2 ways, for example, as 9265936 + 29127609 = 3044^2 + 5397^2 .

It is a cyclic number.

It is not a de Polignac number, because 38393545 - 2¹ = 38393543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38393498 and 38393507.

It is not an unprimeable number, because it can be changed into a prime (38393543) 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, 3839350 + ... + 3839359.

It is an arithmetic number, because the mean of its divisors is an integer number (11518065).

Almost surely, 2^38393545 is an apocalyptic number.

It is an amenable number.

38393545 is a deficient number, since it is larger than the sum of its proper divisors (7678715).

38393545 is an equidigital number, since it uses as much as digits as its factorization.

38393545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7678714.

The product of its digits is 194400, while the sum is 40.

The square root of 38393545 is about 6196.2524964691. The cubic root of 38393545 is about 337.3541610410.

The spelling of 38393545 in words is "thirty-eight million, three hundred ninety-three thousand, five hundred forty-five".