1381682 has 4 divisors (see below), whose sum is σ = 2072526. Its totient is φ = 690840.

The previous prime is 1381649. The next prime is 1381693. The reversal of 1381682 is 2861831.

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., 790321 + 591361 = 889^2 + 769^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345419 + ... + 345422.

2^1381682 is an apocalyptic number.

1381682 is a deficient number, since it is larger than the sum of its proper divisors (690844).

1381682 is an equidigital number, since it uses as much as digits as its factorization.

1381682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690843.

The product of its digits is 2304, while the sum is 29.

The square root of 1381682 is about 1175.4497011782. The cubic root of 1381682 is about 111.3788424354.

The spelling of 1381682 in words is "one million, three hundred eighty-one thousand, six hundred eighty-two".