428893056 has 96 divisors (see below), whose sum is σ = 1279987800. Its totient is φ = 142953984.

The previous prime is 428893043. The next prime is 428893067. The reversal of 428893056 is 650398824.

It is a tau number, because it is divible by the number of its divisors (96).

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24210 + ... + 37998.

Almost surely, 2^428893056 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 428893056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (639993900).

428893056 is an abundant number, since it is smaller than the sum of its proper divisors (851094744).

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

428893056 is an equidigital number, since it uses as much as digits as its factorization.

428893056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13818 (or 13794 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 428893056 is about 20709.7333638075. The cubic root of 428893056 is about 754.1359974396.

It can be divided in two parts, 4288 and 93056, that added together give a square (97344 = 312²).

The spelling of 428893056 in words is "four hundred twenty-eight million, eight hundred ninety-three thousand, fifty-six".