1380046 has 16 divisors (see below), whose sum is σ = 2275200. Its totient is φ = 624888.

The previous prime is 1380031. The next prime is 1380047. The reversal of 1380046 is 6400831.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 1379999 and 1380026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85 + ... + 1663.

It is an arithmetic number, because the mean of its divisors is an integer number (142200).

2^1380046 is an apocalyptic number.

1380046 is a deficient number, since it is larger than the sum of its proper divisors (895154).

1380046 is a wasteful number, since it uses less digits than its factorization.

1380046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1380046 is about 1174.7535911841. The cubic root of 1380046 is about 111.3348651787.

Adding to 1380046 its reverse (6400831), we get a palindrome (7780877).

The spelling of 1380046 in words is "one million, three hundred eighty thousand, forty-six".