1339968 has 56 divisors (see below), whose sum is σ = 4055872. Its totient is φ = 382464.

The previous prime is 1339951. The next prime is 1339969. The reversal of 1339968 is 8699331.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (1339969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846 + ... + 1842.

2^1339968 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 1339968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2027936).

1339968 is an abundant number, since it is smaller than the sum of its proper divisors (2715904).

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

1339968 is an equidigital number, since it uses as much as digits as its factorization.

1339968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019 (or 1009 counting only the distinct ones).

The product of its digits is 34992, while the sum is 39.

The square root of 1339968 is about 1157.5698683017. The cubic root of 1339968 is about 110.2464995469.

It can be divided in two parts, 133 and 9968, that added together give a palindrome (10101).

The spelling of 1339968 in words is "one million, three hundred thirty-nine thousand, nine hundred sixty-eight".