420024866 has 8 divisors (see below), whose sum is σ = 632489580. Its totient is φ = 209195008.

The previous prime is 420024863. The next prime is 420024881. The reversal of 420024866 is 668420024.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 413919025 + 6105841 = 20345^2 + 2471^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (420024863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408071 + ... + 409098.

Almost surely, 2^420024866 is an apocalyptic number.

420024866 is a deficient number, since it is larger than the sum of its proper divisors (212464714).

420024866 is a wasteful number, since it uses less digits than its factorization.

420024866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817428.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 420024866 is about 20494.5081912204. The cubic root of 420024866 is about 748.9020176604.

The spelling of 420024866 in words is "four hundred twenty million, twenty-four thousand, eight hundred sixty-six".