1338229805 has 16 divisors (see below), whose sum is σ = 1753653888. Its totient is φ = 972264000.

The previous prime is 1338229787. The next prime is 1338229859. The reversal of 1338229805 is 5089228331.

It is not a de Polignac number, because 1338229805 - 2⁸ = 1338229549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44240 + ... + 68070.

It is an arithmetic number, because the mean of its divisors is an integer number (109603368).

Almost surely, 2^1338229805 is an apocalyptic number.

It is an amenable number.

1338229805 is a deficient number, since it is larger than the sum of its proper divisors (415424083).

1338229805 is a wasteful number, since it uses less digits than its factorization.

1338229805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24868.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 1338229805 is about 36581.8234236622. The cubic root of 1338229805 is about 1101.9880864827.

The spelling of 1338229805 in words is "one billion, three hundred thirty-eight million, two hundred twenty-nine thousand, eight hundred five".