1338173766 has 12 divisors (see below), whose sum is σ = 2899376532. Its totient is φ = 446057916.

The previous prime is 1338173737. The next prime is 1338173813. The reversal of 1338173766 is 6673718331.

It is a happy number.

1338173766 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37171476 + ... + 37171511.

It is an arithmetic number, because the mean of its divisors is an integer number (241614711).

Almost surely, 2^1338173766 is an apocalyptic number.

1338173766 is an abundant number, since it is smaller than the sum of its proper divisors (1561202766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1338173766 is a wasteful number, since it uses less digits than its factorization.

1338173766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74342995 (or 74342992 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 1338173766 is about 36581.0574751469. The cubic root of 1338173766 is about 1101.9727041789.

The spelling of 1338173766 in words is "one billion, three hundred thirty-eight million, one hundred seventy-three thousand, seven hundred sixty-six".