405254467216 has 45 divisors (see below), whose sum is σ = 798569438043. Its totient is φ = 199229084160.

The previous prime is 405254467171. The next prime is 405254467237. The reversal of 405254467216 is 612764452504.

The square root of 405254467216 is 636596.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 138089532816 + 267164934400 = 371604^2 + 516880^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 155328120 + ... + 155330728.

Almost surely, 2^405254467216 is an apocalyptic number.

405254467216 is the 636596-th square number.

It is an amenable number.

405254467216 is a deficient number, since it is larger than the sum of its proper divisors (393314970827).

405254467216 is an frugal number, since it uses more digits than its factorization.

405254467216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5348 (or 2672 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 46.

The spelling of 405254467216 in words is "four hundred five billion, two hundred fifty-four million, four hundred sixty-seven thousand, two hundred sixteen".