405600450 has 48 divisors (see below), whose sum is σ = 1065065760. Its totient is φ = 101797120.

The previous prime is 405600443. The next prime is 405600451. The reversal of 405600450 is 54006504.

It is a self number, because there is not a number n which added to its sum of digits gives 405600450.

It is not an unprimeable number, because it can be changed into a prime (405600451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76980 + ... + 82079.

It is an arithmetic number, because the mean of its divisors is an integer number (22188870).

Almost surely, 2^405600450 is an apocalyptic number.

405600450 is an abundant number, since it is smaller than the sum of its proper divisors (659465310).

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

405600450 is a wasteful number, since it uses less digits than its factorization.

405600450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159091 (or 159086 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 405600450 is about 20139.5245723428. The cubic root of 405600450 is about 740.2290805254.

Adding to 405600450 its reverse (54006504), we get a palindrome (459606954).

The spelling of 405600450 in words is "four hundred five million, six hundred thousand, four hundred fifty".