8138366 has 8 divisors (see below), whose sum is σ = 12738384. Its totient is φ = 3892240.

The previous prime is 8138363. The next prime is 8138371. The reversal of 8138366 is 6638318.

It is a happy number.

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

It is a super-2 number, since 2×8138366² = 132466002299912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8138363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88415 + ... + 88506.

It is an arithmetic number, because the mean of its divisors is an integer number (1592298).

Almost surely, 2^8138366 is an apocalyptic number.

8138366 is a deficient number, since it is larger than the sum of its proper divisors (4600018).

8138366 is a wasteful number, since it uses less digits than its factorization.

8138366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176946.

The product of its digits is 20736, while the sum is 35.

The square root of 8138366 is about 2852.7821508135. The cubic root of 8138366 is about 201.1464655265.

The spelling of 8138366 in words is "eight million, one hundred thirty-eight thousand, three hundred sixty-six".