405050445 has 12 divisors (see below), whose sum is σ = 702087516. Its totient is φ = 216026880.

The previous prime is 405050441. The next prime is 405050467. The reversal of 405050445 is 544050504.

It can be written as a sum of positive squares in 2 ways, for example, as 238795209 + 166255236 = 15453^2 + 12894^2 .

It is not a de Polignac number, because 405050445 - 2² = 405050441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405050441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4500516 + ... + 4500605.

It is an arithmetic number, because the mean of its divisors is an integer number (58507293).

Almost surely, 2^405050445 is an apocalyptic number.

405050445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

405050445 is a deficient number, since it is larger than the sum of its proper divisors (297037071).

405050445 is a wasteful number, since it uses less digits than its factorization.

405050445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9001132 (or 9001129 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 405050445 is about 20125.8650745751. The cubic root of 405050445 is about 739.8943390654.

The spelling of 405050445 in words is "four hundred five million, fifty thousand, four hundred forty-five".