38422213 has 4 divisors (see below), whose sum is σ = 40092768. Its totient is φ = 36751660.

The previous prime is 38422201. The next prime is 38422217. The reversal of 38422213 is 31222483.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31222483 = 1723 ⋅18121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38422213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38422217) 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 3 ways as a sum of consecutive naturals, for example, 835243 + ... + 835288.

It is an arithmetic number, because the mean of its divisors is an integer number (10023192).

Almost surely, 2^38422213 is an apocalyptic number.

It is an amenable number.

38422213 is a deficient number, since it is larger than the sum of its proper divisors (1670555).

38422213 is a wasteful number, since it uses less digits than its factorization.

38422213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670554.

The product of its digits is 2304, while the sum is 25.

The square root of 38422213 is about 6198.5653985418. The cubic root of 38422213 is about 337.4381062541.

Adding to 38422213 its reverse (31222483), we get a palindrome (69644696).

The spelling of 38422213 in words is "thirty-eight million, four hundred twenty-two thousand, two hundred thirteen".