405543222252 has 72 divisors (see below), whose sum is σ = 1171688402976. Its totient is φ = 115857713664.

The previous prime is 405543222239. The next prime is 405543222263. The reversal of 405543222252 is 252222345504.

405543222252 is a `hidden beast` number, since 4 + 0 + 554 + 32 + 2 + 22 + 52 = 666.

It is a super-2 number, since 2×405543222252² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2572738 + ... + 2725814.

Almost surely, 2^405543222252 is an apocalyptic number.

405543222252 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

405543222252 is an abundant number, since it is smaller than the sum of its proper divisors (766145180724).

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

405543222252 is a wasteful number, since it uses less digits than its factorization.

405543222252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163607 (or 163602 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

Adding to 405543222252 its reverse (252222345504), we get a palindrome (657765567756).

The spelling of 405543222252 in words is "four hundred five billion, five hundred forty-three million, two hundred twenty-two thousand, two hundred fifty-two".