382399949 has 2 divisors, whose sum is σ = 382399950. Its totient is φ = 382399948.

The previous prime is 382399937. The next prime is 382399951. The reversal of 382399949 is 949993283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 380523049 + 1876900 = 19507^2 + 1370^2 .

It is a cyclic number.

It is not a de Polignac number, because 382399949 - 2¹⁶ = 382334413 is a prime.

Together with 382399951, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 382399894 and 382399903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (382399999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191199974 + 191199975.

It is an arithmetic number, because the mean of its divisors is an integer number (191199975).

Almost surely, 2^382399949 is an apocalyptic number.

It is an amenable number.

382399949 is a deficient number, since it is larger than the sum of its proper divisors (1).

382399949 is an equidigital number, since it uses as much as digits as its factorization.

382399949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3779136, while the sum is 56.

The square root of 382399949 is about 19555.0491945175. The cubic root of 382399949 is about 725.8372880707.

The spelling of 382399949 in words is "three hundred eighty-two million, three hundred ninety-nine thousand, nine hundred forty-nine".