38385457 has 4 divisors (see below), whose sum is σ = 41875056. Its totient is φ = 34895860.

The previous prime is 38385449. The next prime is 38385467. The reversal of 38385457 is 75458383.

38385457 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 38385457 - 2³ = 38385449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38385407) 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, 1744783 + ... + 1744804.

It is an arithmetic number, because the mean of its divisors is an integer number (10468764).

Almost surely, 2^38385457 is an apocalyptic number.

It is an amenable number.

38385457 is a deficient number, since it is larger than the sum of its proper divisors (3489599).

38385457 is a wasteful number, since it uses less digits than its factorization.

38385457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3489598.

The product of its digits is 403200, while the sum is 43.

The square root of 38385457 is about 6195.5998095423. The cubic root of 38385457 is about 337.3304703219.

The spelling of 38385457 in words is "thirty-eight million, three hundred eighty-five thousand, four hundred fifty-seven".