38822138 has 4 divisors (see below), whose sum is σ = 58233210. Its totient is φ = 19411068.

The previous prime is 38822071. The next prime is 38822153. The reversal of 38822138 is 83122883.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83122883 = 269 ⋅309007.

It can be written as a sum of positive squares in only one way, i.e., 38278969 + 543169 = 6187^2 + 737^2 .

It is a super-3 number, since 3×38822138³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38822098 and 38822107.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9705533 + ... + 9705536.

Almost surely, 2^38822138 is an apocalyptic number.

38822138 is a deficient number, since it is larger than the sum of its proper divisors (19411072).

38822138 is a wasteful number, since it uses less digits than its factorization.

38822138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19411071.

The product of its digits is 18432, while the sum is 35.

The square root of 38822138 is about 6230.7413684087. The cubic root of 38822138 is about 338.6048307047.

The spelling of 38822138 in words is "thirty-eight million, eight hundred twenty-two thousand, one hundred thirty-eight".