3138826 has 4 divisors (see below), whose sum is σ = 4708242. Its totient is φ = 1569412.

The previous prime is 3138809. The next prime is 3138847. The reversal of 3138826 is 6288313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2418025 + 720801 = 1555^2 + 849^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 784705 + ... + 784708.

Almost surely, 2^3138826 is an apocalyptic number.

3138826 is a deficient number, since it is larger than the sum of its proper divisors (1569416).

3138826 is a wasteful number, since it uses less digits than its factorization.

3138826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569415.

The product of its digits is 6912, while the sum is 31.

The square root of 3138826 is about 1771.6732204332. The cubic root of 3138826 is about 146.4161828787.

The spelling of 3138826 in words is "three million, one hundred thirty-eight thousand, eight hundred twenty-six".