428444476 has 12 divisors (see below), whose sum is σ = 750414672. Its totient is φ = 214040288.

The previous prime is 428444473. The next prime is 428444477. The reversal of 428444476 is 674444824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428444473) 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, 40120 + ... + 49663.

It is an arithmetic number, because the mean of its divisors is an integer number (62534556).

Almost surely, 2^428444476 is an apocalyptic number.

It is an amenable number.

428444476 is a deficient number, since it is larger than the sum of its proper divisors (321970196).

428444476 is a wasteful number, since it uses less digits than its factorization.

428444476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90980 (or 90978 counting only the distinct ones).

The product of its digits is 688128, while the sum is 43.

The square root of 428444476 is about 20698.9003572654. The cubic root of 428444476 is about 753.8729883366.

The spelling of 428444476 in words is "four hundred twenty-eight million, four hundred forty-four thousand, four hundred seventy-six".