1380635 has 8 divisors (see below), whose sum is σ = 1744080. Its totient is φ = 1046304.

The previous prime is 1380629. The next prime is 1380637. The reversal of 1380635 is 5360831.

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

It is a cyclic number.

It is not a de Polignac number, because 1380635 - 2⁴ = 1380619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1380637) 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, 7172 + ... + 7361.

It is an arithmetic number, because the mean of its divisors is an integer number (218010).

2^1380635 is an apocalyptic number.

1380635 is a deficient number, since it is larger than the sum of its proper divisors (363445).

1380635 is a wasteful number, since it uses less digits than its factorization.

1380635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14557.

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

The square root of 1380635 is about 1175.0042553114. The cubic root of 1380635 is about 111.3507020683.

The spelling of 1380635 in words is "one million, three hundred eighty thousand, six hundred thirty-five".