1382221682 has 4 divisors (see below), whose sum is σ = 2073332526. Its totient is φ = 691110840.

The previous prime is 1382221661. The next prime is 1382221723. The reversal of 1382221682 is 2861222831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2861222831 = 313 ⋅9141287.

It can be written as a sum of positive squares in only one way, i.e., 974625961 + 407595721 = 31219^2 + 20189^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345555419 + ... + 345555422.

Almost surely, 2^1382221682 is an apocalyptic number.

1382221682 is a deficient number, since it is larger than the sum of its proper divisors (691110844).

1382221682 is an equidigital number, since it uses as much as digits as its factorization.

1382221682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691110843.

The product of its digits is 18432, while the sum is 35.

The square root of 1382221682 is about 37178.2420509631. The cubic root of 1382221682 is about 1113.9334199266.

The spelling of 1382221682 in words is "one billion, three hundred eighty-two million, two hundred twenty-one thousand, six hundred eighty-two".