420327444 has 12 divisors (see below), whose sum is σ = 980764064. Its totient is φ = 140109144.

The previous prime is 420327433. The next prime is 420327463. The reversal of 420327444 is 444723024.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17513632 + ... + 17513655.

Almost surely, 2^420327444 is an apocalyptic number.

It is an amenable number.

420327444 is an abundant number, since it is smaller than the sum of its proper divisors (560436620).

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

420327444 is a wasteful number, since it uses less digits than its factorization.

420327444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35027294 (or 35027292 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 30.

The square root of 420327444 is about 20501.8887910358. Note that the first 3 decimals coincide. The cubic root of 420327444 is about 749.0818061299.

The spelling of 420327444 in words is "four hundred twenty million, three hundred twenty-seven thousand, four hundred forty-four".