405305322 has 16 divisors (see below), whose sum is σ = 814184352. Its totient is φ = 134506160.

The previous prime is 405305297. The next prime is 405305323. The reversal of 405305322 is 223503504.

It is a junction number, because it is equal to n+sod(n) for n = 405305292 and 405305301.

It is not an unprimeable number, because it can be changed into a prime (405305323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147429 + ... + 150152.

It is an arithmetic number, because the mean of its divisors is an integer number (50886522).

Almost surely, 2^405305322 is an apocalyptic number.

405305322 is an abundant number, since it is smaller than the sum of its proper divisors (408879030).

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

405305322 is a wasteful number, since it uses less digits than its factorization.

405305322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297813.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 405305322 is about 20132.1961544189. The cubic root of 405305322 is about 740.0494987586.

Adding to 405305322 its reverse (223503504), we get a palindrome (628808826).

The spelling of 405305322 in words is "four hundred five million, three hundred five thousand, three hundred twenty-two".