1338942267 has 24 divisors (see below), whose sum is σ = 2154625200. Its totient is φ = 795549888.

The previous prime is 1338942259. The next prime is 1338942277. The reversal of 1338942267 is 7622498331.

1338942267 is a `hidden beast` number, since 1 + 3 + 389 + 4 + 2 + 267 = 666.

It is not a de Polignac number, because 1338942267 - 2³ = 1338942259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1338942277) 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 23 ways as a sum of consecutive naturals, for example, 193917 + ... + 200702.

It is an arithmetic number, because the mean of its divisors is an integer number (89776050).

Almost surely, 2^1338942267 is an apocalyptic number.

1338942267 is a deficient number, since it is larger than the sum of its proper divisors (815682933).

1338942267 is a wasteful number, since it uses less digits than its factorization.

1338942267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394667 (or 394664 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 1338942267 is about 36591.5600514654. The cubic root of 1338942267 is about 1102.1836147702.

It can be divided in two parts, 133894 and 2267, that added together give a square (136161 = 369²).

The spelling of 1338942267 in words is "one billion, three hundred thirty-eight million, nine hundred forty-two thousand, two hundred sixty-seven".