1338881452 has 24 divisors (see below), whose sum is σ = 2375426592. Its totient is φ = 660240000.

The previous prime is 1338881449. The next prime is 1338881473. The reversal of 1338881452 is 2541888331.

It is a junction number, because it is equal to n+sod(n) for n = 1338881399 and 1338881408.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 99952 + ... + 112552.

It is an arithmetic number, because the mean of its divisors is an integer number (98976108).

Almost surely, 2^1338881452 is an apocalyptic number.

It is an amenable number.

1338881452 is a deficient number, since it is larger than the sum of its proper divisors (1036545140).

1338881452 is a wasteful number, since it uses less digits than its factorization.

1338881452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12969 (or 12967 counting only the distinct ones).

The product of its digits is 184320, while the sum is 43.

The square root of 1338881452 is about 36590.7290443905. The cubic root of 1338881452 is about 1102.1669273911.

The spelling of 1338881452 in words is "one billion, three hundred thirty-eight million, eight hundred eighty-one thousand, four hundred fifty-two".