405324420 has 24 divisors (see below), whose sum is σ = 1134908544. Its totient is φ = 108086496.

The previous prime is 405324419. The next prime is 405324433. The reversal of 405324420 is 24423504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3377644 + ... + 3377763.

It is an arithmetic number, because the mean of its divisors is an integer number (47287856).

Almost surely, 2^405324420 is an apocalyptic number.

It is an amenable number.

405324420 is an abundant number, since it is smaller than the sum of its proper divisors (729584124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405324420 is a wasteful number, since it uses less digits than its factorization.

405324420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6755419 (or 6755417 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 405324420 is about 20132.6704637015. The cubic root of 405324420 is about 740.0611222949.

Adding to 405324420 its reverse (24423504), we get a palindrome (429747924).

The spelling of 405324420 in words is "four hundred five million, three hundred twenty-four thousand, four hundred twenty".