1339688 has 32 divisors (see below), whose sum is σ = 2937600. Its totient is φ = 560832.

The previous prime is 1339687. The next prime is 1339691. The reversal of 1339688 is 8869331.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1339687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2378 + ... + 2886.

It is an arithmetic number, because the mean of its divisors is an integer number (91800).

2^1339688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1339688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1468800).

1339688 is an abundant number, since it is smaller than the sum of its proper divisors (1597912).

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

1339688 is a wasteful number, since it uses less digits than its factorization.

1339688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 565 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 1339688 is about 1157.4489189593. The cubic root of 1339688 is about 110.2388199679.

The spelling of 1339688 in words is "one million, three hundred thirty-nine thousand, six hundred eighty-eight".