428544924 has 96 divisors (see below), whose sum is σ = 1114767360. Its totient is φ = 127512000.

The previous prime is 428544917. The next prime is 428544937. The reversal of 428544924 is 429445824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 371749 + ... + 372899.

It is an arithmetic number, because the mean of its divisors is an integer number (11612160).

Almost surely, 2^428544924 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 428544924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557383680).

428544924 is an abundant number, since it is smaller than the sum of its proper divisors (686222436).

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

428544924 is a wasteful number, since it uses less digits than its factorization.

428544924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271 (or 1269 counting only the distinct ones).

The product of its digits is 368640, while the sum is 42.

The square root of 428544924 is about 20701.3266241562. The cubic root of 428544924 is about 753.9318984336.

The spelling of 428544924 in words is "four hundred twenty-eight million, five hundred forty-four thousand, nine hundred twenty-four".