38163213 has 24 divisors (see below), whose sum is σ = 60349536. Its totient is φ = 23047200.

The previous prime is 38163211. The next prime is 38163259. The reversal of 38163213 is 31236183.

It is a happy number.

It is not a de Polignac number, because 38163213 - 2¹ = 38163211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38163211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38818 + ... + 39788.

It is an arithmetic number, because the mean of its divisors is an integer number (2514564).

Almost surely, 2^38163213 is an apocalyptic number.

38163213 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

38163213 is a deficient number, since it is larger than the sum of its proper divisors (22186323).

38163213 is a wasteful number, since it uses less digits than its factorization.

38163213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385 (or 1382 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 38163213 is about 6177.6381409079. The cubic root of 38163213 is about 336.6781848601.

Adding to 38163213 its reverse (31236183), we get a palindrome (69399396).

The spelling of 38163213 in words is "thirty-eight million, one hundred sixty-three thousand, two hundred thirteen".