428087296 has 96 divisors (see below), whose sum is σ = 1053954720. Its totient is φ = 169279488.

The previous prime is 428087249. The next prime is 428087323. The reversal of 428087296 is 692780824.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185220 + ... + 187516.

It is an arithmetic number, because the mean of its divisors is an integer number (10978695).

Almost surely, 2^428087296 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 428087296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (526977360).

428087296 is an abundant number, since it is smaller than the sum of its proper divisors (625867424).

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

428087296 is a wasteful number, since it uses less digits than its factorization.

428087296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2339 (or 2319 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 428087296 is about 20690.2705637215. The cubic root of 428087296 is about 753.6634370953.

The spelling of 428087296 in words is "four hundred twenty-eight million, eighty-seven thousand, two hundred ninety-six".