420328244 has 12 divisors (see below), whose sum is σ = 840656544. Its totient is φ = 180140664.

The previous prime is 420328231. The next prime is 420328253. The reversal of 420328244 is 442823024.

It is a happy number.

420328244 is an admirable number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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, 7505834 + ... + 7505889.

It is an arithmetic number, because the mean of its divisors is an integer number (70054712).

Almost surely, 2^420328244 is an apocalyptic number.

It is an amenable number.

420328244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

420328244 is a wasteful number, since it uses less digits than its factorization.

420328244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15011734 (or 15011732 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

The square root of 420328244 is about 20501.9083014240. The cubic root of 420328244 is about 749.0822813666.

The spelling of 420328244 in words is "four hundred twenty million, three hundred twenty-eight thousand, two hundred forty-four".