382918213 has 2 divisors, whose sum is σ = 382918214. Its totient is φ = 382918212.

The previous prime is 382918181. The next prime is 382918219. The reversal of 382918213 is 312819283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 340107364 + 42810849 = 18442^2 + 6543^2 .

It is a cyclic number.

It is not a de Polignac number, because 382918213 - 2⁵ = 382918181 is a prime.

It is a super-2 number, since 2×382918213² = 293252715694226738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (382918219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191459106 + 191459107.

It is an arithmetic number, because the mean of its divisors is an integer number (191459107).

Almost surely, 2^382918213 is an apocalyptic number.

It is an amenable number.

382918213 is a deficient number, since it is larger than the sum of its proper divisors (1).

382918213 is an equidigital number, since it uses as much as digits as its factorization.

382918213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 382918213 is about 19568.2961189778. The cubic root of 382918213 is about 726.1650474602.

The spelling of 382918213 in words is "three hundred eighty-two million, nine hundred eighteen thousand, two hundred thirteen".