1338366826 has 12 divisors (see below), whose sum is σ = 2098631682. Its totient is φ = 640087976.

The previous prime is 1338366817. The next prime is 1338366829. The reversal of 1338366826 is 6286638331.

It can be written as a sum of positive squares in only one way, i.e., 1292330601 + 46036225 = 35949^2 + 6785^2 .

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (1338366829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 631441 + ... + 633556.

Almost surely, 2^1338366826 is an apocalyptic number.

1338366826 is a deficient number, since it is larger than the sum of its proper divisors (760264856).

1338366826 is a wasteful number, since it uses less digits than its factorization.

1338366826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265045 (or 1265022 counting only the distinct ones).

The product of its digits is 746496, while the sum is 46.

The square root of 1338366826 is about 36583.6961773957. The cubic root of 1338366826 is about 1102.0256959565.

The spelling of 1338366826 in words is "one billion, three hundred thirty-eight million, three hundred sixty-six thousand, eight hundred twenty-six".