1380485 has 16 divisors (see below), whose sum is σ = 1782000. Its totient is φ = 1022976.

The previous prime is 1380469. The next prime is 1380499. The reversal of 1380485 is 5840831.

It can be written as a sum of positive squares in 8 ways, for example, as 2209 + 1378276 = 47^2 + 1174^2 .

It is a cyclic number.

It is not a de Polignac number, because 1380485 - 2⁴ = 1380469 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 15 ways as a sum of consecutive naturals, for example, 9191 + ... + 9339.

It is an arithmetic number, because the mean of its divisors is an integer number (111375).

2^1380485 is an apocalyptic number.

It is an amenable number.

1380485 is a deficient number, since it is larger than the sum of its proper divisors (401515).

1380485 is a wasteful number, since it uses less digits than its factorization.

1380485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 1380485 is about 1174.9404240216. The cubic root of 1380485 is about 111.3466693321.

The spelling of 1380485 in words is "one million, three hundred eighty thousand, four hundred eighty-five".