420328844 has 24 divisors (see below), whose sum is σ = 801067680. Its totient is φ = 191816064.

The previous prime is 420328829. The next prime is 420328861. The reversal of 420328844 is 448823024.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40784 + ... + 50039.

It is an arithmetic number, because the mean of its divisors is an integer number (33377820).

Almost surely, 2^420328844 is an apocalyptic number.

It is an amenable number.

420328844 is a deficient number, since it is larger than the sum of its proper divisors (380738836).

420328844 is a wasteful number, since it uses less digits than its factorization.

420328844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90929 (or 90927 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 35.

The square root of 420328844 is about 20501.9229342030. The cubic root of 420328844 is about 749.0826377937.

The spelling of 420328844 in words is "four hundred twenty million, three hundred twenty-eight thousand, eight hundred forty-four".