38211386 has 8 divisors (see below), whose sum is σ = 59293620. Its totient is φ = 18446848.

The previous prime is 38211377. The next prime is 38211389. The reversal of 38211386 is 68311283.

It is a happy number.

38211386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 33930625 + 4280761 = 5825^2 + 2069^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×38211386² = 2920220040081992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38211389) 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, 329351 + ... + 329466.

Almost surely, 2^38211386 is an apocalyptic number.

38211386 is a deficient number, since it is larger than the sum of its proper divisors (21082234).

38211386 is a wasteful number, since it uses less digits than its factorization.

38211386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658848.

The product of its digits is 6912, while the sum is 32.

The square root of 38211386 is about 6181.5358932874. The cubic root of 38211386 is about 336.8197870073.

The spelling of 38211386 in words is "thirty-eight million, two hundred eleven thousand, three hundred eighty-six".