405143322434 has 8 divisors (see below), whose sum is σ = 607728225468. Its totient is φ = 202567247280.

The previous prime is 405143322413. The next prime is 405143322469. The reversal of 405143322434 is 434223341504.

It can be written as a sum of positive squares in 2 ways, for example, as 404731354225 + 411968209 = 636185^2 + 20297^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×405143322434² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 405143322394 and 405143322403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2091017 + ... + 2276540.

Almost surely, 2^405143322434 is an apocalyptic number.

405143322434 is a deficient number, since it is larger than the sum of its proper divisors (202584903034).

405143322434 is a wasteful number, since it uses less digits than its factorization.

405143322434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4413940.

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 405143322434 its reverse (434223341504), we get a palindrome (839366663938).

The spelling of 405143322434 in words is "four hundred five billion, one hundred forty-three million, three hundred twenty-two thousand, four hundred thirty-four".