1382808217 has 8 divisors (see below), whose sum is σ = 1581881600. Its totient is φ = 1184117184.

The previous prime is 1382808209. The next prime is 1382808257. The reversal of 1382808217 is 7128082831.

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

It is a cyclic number.

It is not a de Polignac number, because 1382808217 - 2³ = 1382808209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1382808217.

It is not an unprimeable number, because it can be changed into a prime (1382808257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87792 + ... + 102337.

It is an arithmetic number, because the mean of its divisors is an integer number (197735200).

Almost surely, 2^1382808217 is an apocalyptic number.

It is an amenable number.

1382808217 is a deficient number, since it is larger than the sum of its proper divisors (199073383).

1382808217 is a wasteful number, since it uses less digits than its factorization.

1382808217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191175.

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 1382808217 is about 37186.1293629762. The cubic root of 1382808217 is about 1114.0909606338.

The spelling of 1382808217 in words is "one billion, three hundred eighty-two million, eight hundred eight thousand, two hundred seventeen".