405444107 has 2 divisors, whose sum is σ = 405444108. Its totient is φ = 405444106.

The previous prime is 405444077. The next prime is 405444167. The reversal of 405444107 is 701444504.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 405444107 - 2⁸ = 405443851 is a prime.

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 405444107.

It is not a weakly prime, because it can be changed into another prime (405444167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202722053 + 202722054.

It is an arithmetic number, because the mean of its divisors is an integer number (202722054).

Almost surely, 2^405444107 is an apocalyptic number.

405444107 is a deficient number, since it is larger than the sum of its proper divisors (1).

405444107 is an equidigital number, since it uses as much as digits as its factorization.

405444107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 405444107 is about 20135.6427014387. The cubic root of 405444107 is about 740.1339585829.

The spelling of 405444107 in words is "four hundred five million, four hundred forty-four thousand, one hundred seven".