38393949 has 16 divisors (see below), whose sum is σ = 56764224. Its totient is φ = 22886400.

The previous prime is 38393947. The next prime is 38393983. The reversal of 38393949 is 94939383.

38393949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38393949 - 2¹ = 38393947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38393898 and 38393907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38393947) 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 15 ways as a sum of consecutive naturals, for example, 7524 + ... + 11549.

It is an arithmetic number, because the mean of its divisors is an integer number (3547764).

Almost surely, 2^38393949 is an apocalyptic number.

It is an amenable number.

38393949 is a deficient number, since it is larger than the sum of its proper divisors (18370275).

38393949 is a wasteful number, since it uses less digits than its factorization.

38393949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19148.

The product of its digits is 629856, while the sum is 48.

The square root of 38393949 is about 6196.2850967334. The cubic root of 38393949 is about 337.3553443181.

The spelling of 38393949 in words is "thirty-eight million, three hundred ninety-three thousand, nine hundred forty-nine".