1381466 has 8 divisors (see below), whose sum is σ = 2091540. Its totient is φ = 684288.

The previous prime is 1381459. The next prime is 1381483. The reversal of 1381466 is 6641831.

It can be written as a sum of positive squares in 2 ways, for example, as 1380625 + 841 = 1175^2 + 29^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2951 + ... + 3386.

2^1381466 is an apocalyptic number.

1381466 is a deficient number, since it is larger than the sum of its proper divisors (710074).

1381466 is a wasteful number, since it uses less digits than its factorization.

1381466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6448.

The product of its digits is 3456, while the sum is 29.

The square root of 1381466 is about 1175.3578178580. The cubic root of 1381466 is about 111.3730381370.

The spelling of 1381466 in words is "one million, three hundred eighty-one thousand, four hundred sixty-six".