1380704 has 24 divisors (see below), whose sum is σ = 2928240. Its totient is φ = 637056.

The previous prime is 1380679. The next prime is 1380707. The reversal of 1380704 is 4070831.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1380704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380707) 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 3 ways as a sum of consecutive naturals, for example, 1244 + ... + 2075.

It is an arithmetic number, because the mean of its divisors is an integer number (122010).

2^1380704 is an apocalyptic number.

It is an amenable number.

1380704 is an abundant number, since it is smaller than the sum of its proper divisors (1547536).

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

1380704 is a wasteful number, since it uses less digits than its factorization.

1380704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3342 (or 3334 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1380704 is about 1175.0336165404. The cubic root of 1380704 is about 111.3525570289.

The spelling of 1380704 in words is "one million, three hundred eighty thousand, seven hundred four".