1380996 has 48 divisors (see below), whose sum is σ = 3774400. Its totient is φ = 435456.

The previous prime is 1380983. The next prime is 1380997. The reversal of 1380996 is 6990831.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1380996.

It is not an unprimeable number, because it can be changed into a prime (1380997) 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 15 ways as a sum of consecutive naturals, for example, 1716 + ... + 2388.

2^1380996 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 1380996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1887200).

1380996 is an abundant number, since it is smaller than the sum of its proper divisors (2393404).

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

1380996 is a wasteful number, since it uses less digits than its factorization.

1380996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705 (or 697 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1380996 is about 1175.1578617360. The cubic root of 1380996 is about 111.3604063228.

The spelling of 1380996 in words is "one million, three hundred eighty thousand, nine hundred ninety-six".