428484472 has 32 divisors (see below), whose sum is σ = 870080400. Its totient is φ = 196648704.

The previous prime is 428484421. The next prime is 428484479. The reversal of 428484472 is 274484824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428484479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7108 + ... + 30124.

Almost surely, 2^428484472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428484472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435040200).

428484472 is an abundant number, since it is smaller than the sum of its proper divisors (441595928).

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

428484472 is a wasteful number, since it uses less digits than its factorization.

428484472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23215 (or 23211 counting only the distinct ones).

The product of its digits is 458752, while the sum is 43.

The square root of 428484472 is about 20699.8664729993. The cubic root of 428484472 is about 753.8964460365.

The spelling of 428484472 in words is "four hundred twenty-eight million, four hundred eighty-four thousand, four hundred seventy-two".