382090909 has 2 divisors, whose sum is σ = 382090910. Its totient is φ = 382090908.

The previous prime is 382090873. The next prime is 382090949. The reversal of 382090909 is 909090283.

It is a happy number.

It is an a-pointer prime, because the next prime (382090949) can be obtained adding 382090909 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225090009 + 157000900 = 15003^2 + 12530^2 .

It is a cyclic number.

It is not a de Polignac number, because 382090909 - 2²⁵ = 348536477 is a prime.

382090909 is a modest number, since divided by 90909 gives 382 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (382090949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191045454 + 191045455.

It is an arithmetic number, because the mean of its divisors is an integer number (191045455).

Almost surely, 2^382090909 is an apocalyptic number.

It is an amenable number.

382090909 is a deficient number, since it is larger than the sum of its proper divisors (1).

382090909 is an equidigital number, since it uses as much as digits as its factorization.

382090909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 382090909 is about 19547.1458018812. The cubic root of 382090909 is about 725.6417047030.

The spelling of 382090909 in words is "three hundred eighty-two million, ninety thousand, nine hundred nine".