1338681015 has 48 divisors (see below), whose sum is σ = 2654473536. Its totient is φ = 611366400.

The previous prime is 1338681007. The next prime is 1338681041. The reversal of 1338681015 is 5101868331.

It is not a de Polignac number, because 1338681015 - 2³ = 1338681007 is a prime.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 547195 + ... + 549635.

It is an arithmetic number, because the mean of its divisors is an integer number (55301532).

Almost surely, 2^1338681015 is an apocalyptic number.

1338681015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1338681015 is a deficient number, since it is larger than the sum of its proper divisors (1315792521).

1338681015 is a wasteful number, since it uses less digits than its factorization.

1338681015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4200 (or 4197 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1338681015 is about 36587.9900377159. The cubic root of 1338681015 is about 1102.1119247477. Note that the first 3 decimals are identical.

The spelling of 1338681015 in words is "one billion, three hundred thirty-eight million, six hundred eighty-one thousand, fifteen".