1338492904 has 16 divisors (see below), whose sum is σ = 2868199200. Its totient is φ = 573639792.

The previous prime is 1338492851. The next prime is 1338492907. The reversal of 1338492904 is 4092948331.

It is not an unprimeable number, because it can be changed into a prime (1338492907) 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 3 ways as a sum of consecutive naturals, for example, 11950774 + ... + 11950885.

It is an arithmetic number, because the mean of its divisors is an integer number (179262450).

Almost surely, 2^1338492904 is an apocalyptic number.

1338492904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1338492904 is an abundant number, since it is smaller than the sum of its proper divisors (1529706296).

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

1338492904 is a wasteful number, since it uses less digits than its factorization.

1338492904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23901672 (or 23901668 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 1338492904 is about 36585.4192814569. The cubic root of 1338492904 is about 1102.0602995321.

The spelling of 1338492904 in words is "one billion, three hundred thirty-eight million, four hundred ninety-two thousand, nine hundred four".