1380416 has 14 divisors (see below), whose sum is σ = 2739390. Its totient is φ = 690176.

The previous prime is 1380397. The next prime is 1380419. The reversal of 1380416 is 6140831.

It can be written as a sum of positive squares in only one way, i.e., 802816 + 577600 = 896^2 + 760^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1380391 and 1380400.

It is not an unprimeable number, because it can be changed into a prime (1380419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10721 + ... + 10848.

2^1380416 is an apocalyptic number.

1380416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1380416 is a deficient number, since it is larger than the sum of its proper divisors (1358974).

1380416 is an equidigital number, since it uses as much as digits as its factorization.

1380416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21581 (or 21571 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1380416 is about 1174.9110604637. The cubic root of 1380416 is about 111.3448141753.

The spelling of 1380416 in words is "one million, three hundred eighty thousand, four hundred sixteen".