1339808 has 24 divisors (see below), whose sum is σ = 2664900. Its totient is φ = 663040.

The previous prime is 1339781. The next prime is 1339813. The reversal of 1339808 is 8089331.

It can be written as a sum of positive squares in 2 ways, for example, as 1317904 + 21904 = 1148^2 + 148^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4628 + ... + 4908.

2^1339808 is an apocalyptic number.

It is an amenable number.

1339808 is a deficient number, since it is larger than the sum of its proper divisors (1325092).

1339808 is a wasteful number, since it uses less digits than its factorization.

1339808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1339808 is about 1157.5007559393. The cubic root of 1339808 is about 110.2421113471.

The spelling of 1339808 in words is "one million, three hundred thirty-nine thousand, eight hundred eight".