1338499180 has 12 divisors (see below), whose sum is σ = 2810848320. Its totient is φ = 535399664.

The previous prime is 1338499177. The next prime is 1338499189. The reversal of 1338499180 is 819948331.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1338499180.

It is not an unprimeable number, because it can be changed into a prime (1338499189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33462460 + ... + 33462499.

It is an arithmetic number, because the mean of its divisors is an integer number (234237360).

Almost surely, 2^1338499180 is an apocalyptic number.

1338499180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1338499180 is an abundant number, since it is smaller than the sum of its proper divisors (1472349140).

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

1338499180 is a wasteful number, since it uses less digits than its factorization.

1338499180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66924968 (or 66924966 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 1338499180 is about 36585.5050532311. The cubic root of 1338499180 is about 1102.0620219967.

The spelling of 1338499180 in words is "one billion, three hundred thirty-eight million, four hundred ninety-nine thousand, one hundred eighty".