1382216705 has 16 divisors (see below), whose sum is σ = 1816791120. Its totient is φ = 1004838912.

The previous prime is 1382216687. The next prime is 1382216741. The reversal of 1382216705 is 5076122831.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 79584241 + 1302632464 = 8921^2 + 36092^2 .

It is a cyclic number.

It is not a de Polignac number, because 1382216705 - 2⁸ = 1382216449 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277904 + ... + 282833.

It is an arithmetic number, because the mean of its divisors is an integer number (113549445).

Almost surely, 2^1382216705 is an apocalyptic number.

It is an amenable number.

1382216705 is a deficient number, since it is larger than the sum of its proper divisors (434574415).

1382216705 is a wasteful number, since it uses less digits than its factorization.

1382216705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560788.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 1382216705 is about 37178.1751165923. The cubic root of 1382216705 is about 1113.9320829357.

The spelling of 1382216705 in words is "one billion, three hundred eighty-two million, two hundred sixteen thousand, seven hundred five".