1381346 has 4 divisors (see below), whose sum is σ = 2072022. Its totient is φ = 690672.

The previous prime is 1381337. The next prime is 1381349. The reversal of 1381346 is 6431831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 978121 + 403225 = 989^2 + 635^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345335 + ... + 345338.

2^1381346 is an apocalyptic number.

1381346 is a deficient number, since it is larger than the sum of its proper divisors (690676).

1381346 is an equidigital number, since it uses as much as digits as its factorization.

1381346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690675.

The product of its digits is 1728, while the sum is 26.

The square root of 1381346 is about 1175.3067684652. The cubic root of 1381346 is about 111.3698132654.

The spelling of 1381346 in words is "one million, three hundred eighty-one thousand, three hundred forty-six".