1338928 has 20 divisors (see below), whose sum is σ = 2635000. Its totient is φ = 658944.

The previous prime is 1338923. The next prime is 1338941. The reversal of 1338928 is 8298331.

It is a junction number, because it is equal to n+sod(n) for n = 1338893 and 1338902.

It is not an unprimeable number, because it can be changed into a prime (1338923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448 + ... + 1696.

It is an arithmetic number, because the mean of its divisors is an integer number (131750).

2^1338928 is an apocalyptic number.

It is an amenable number.

1338928 is a deficient number, since it is larger than the sum of its proper divisors (1296072).

1338928 is a wasteful number, since it uses less digits than its factorization.

1338928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324 (or 1318 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 1338928 is about 1157.1205641592. The cubic root of 1338928 is about 110.2179700011.

The spelling of 1338928 in words is "one million, three hundred thirty-eight thousand, nine hundred twenty-eight".