366645949 has 2 divisors, whose sum is σ = 366645950. Its totient is φ = 366645948.

The previous prime is 366645901. The next prime is 366645971. The reversal of 366645949 is 949546663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191268900 + 175377049 = 13830^2 + 13243^2 .

It is a cyclic number.

It is not a de Polignac number, because 366645949 - 2¹³ = 366637757 is a prime.

It is a super-2 number, since 2×366645949² = 268858503836221202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 366645896 and 366645905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (366645989) 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, 183322974 + 183322975.

It is an arithmetic number, because the mean of its divisors is an integer number (183322975).

Almost surely, 2^366645949 is an apocalyptic number.

It is an amenable number.

366645949 is a deficient number, since it is larger than the sum of its proper divisors (1).

366645949 is an equidigital number, since it uses as much as digits as its factorization.

366645949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4199040, while the sum is 52.

The square root of 366645949 is about 19148.0011750574. The cubic root of 366645949 is about 715.7295756075.

The spelling of 366645949 in words is "three hundred sixty-six million, six hundred forty-five thousand, nine hundred forty-nine".