405324441 has 12 divisors (see below), whose sum is σ = 592523568. Its totient is φ = 266960184.

The previous prime is 405324433. The next prime is 405324481. The reversal of 405324441 is 144423504.

It is a happy number.

It is not a de Polignac number, because 405324441 - 2³ = 405324433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (405324481) 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, 270555 + ... + 272048.

It is an arithmetic number, because the mean of its divisors is an integer number (49376964).

Almost surely, 2^405324441 is an apocalyptic number.

It is an amenable number.

405324441 is a deficient number, since it is larger than the sum of its proper divisors (187199127).

405324441 is a wasteful number, since it uses less digits than its factorization.

405324441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542692 (or 542689 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 405324441 is about 20132.6709852419. The cubic root of 405324441 is about 740.0611350758.

Adding to 405324441 its reverse (144423504), we get a palindrome (549747945).

The spelling of 405324441 in words is "four hundred five million, three hundred twenty-four thousand, four hundred forty-one".