366440447 has 2 divisors, whose sum is σ = 366440448. Its totient is φ = 366440446.

The previous prime is 366440413. The next prime is 366440449. The reversal of 366440447 is 744044663.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 366440447 - 2²⁶ = 299331583 is a prime.

Together with 366440449, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 366440447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (366440449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183220223 + 183220224.

It is an arithmetic number, because the mean of its divisors is an integer number (183220224).

Almost surely, 2^366440447 is an apocalyptic number.

366440447 is a deficient number, since it is larger than the sum of its proper divisors (1).

366440447 is an equidigital number, since it uses as much as digits as its factorization.

366440447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 38.

The square root of 366440447 is about 19142.6342753551. The cubic root of 366440447 is about 715.5958304618.

The spelling of 366440447 in words is "three hundred sixty-six million, four hundred forty thousand, four hundred forty-seven".