421522466 has 8 divisors (see below), whose sum is σ = 633116844. Its totient is φ = 210483520.

The previous prime is 421522457. The next prime is 421522471. The reversal of 421522466 is 664225124.

It can be written as a sum of positive squares in 2 ways, for example, as 369754441 + 51768025 = 19229^2 + 7195^2 .

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

It is a Curzon number.

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, 136955 + ... + 139998.

Almost surely, 2^421522466 is an apocalyptic number.

421522466 is a deficient number, since it is larger than the sum of its proper divisors (211594378).

421522466 is a wasteful number, since it uses less digits than its factorization.

421522466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277716.

The product of its digits is 23040, while the sum is 32.

The square root of 421522466 is about 20531.0122984718. The cubic root of 421522466 is about 749.7910327453.

The spelling of 421522466 in words is "four hundred twenty-one million, five hundred twenty-two thousand, four hundred sixty-six".