1380365 has 8 divisors (see below), whose sum is σ = 1893120. Its totient is φ = 946512.

The previous prime is 1380341. The next prime is 1380377. The reversal of 1380365 is 5630831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1380365 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 19685 + ... + 19754.

It is an arithmetic number, because the mean of its divisors is an integer number (236640).

2^1380365 is an apocalyptic number.

It is an amenable number.

1380365 is a deficient number, since it is larger than the sum of its proper divisors (512755).

1380365 is an equidigital number, since it uses as much as digits as its factorization.

1380365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39451.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1380365 is about 1174.8893564928. The cubic root of 1380365 is about 111.3434429328.

The spelling of 1380365 in words is "one million, three hundred eighty thousand, three hundred sixty-five".