428587288 has 16 divisors (see below), whose sum is σ = 831312000. Its totient is φ = 206904096.

The previous prime is 428587279. The next prime is 428587303. The reversal of 428587288 is 882785824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 923448 + ... + 923911.

It is an arithmetic number, because the mean of its divisors is an integer number (51957000).

Almost surely, 2^428587288 is an apocalyptic number.

It is an amenable number.

428587288 is a deficient number, since it is larger than the sum of its proper divisors (402724712).

428587288 is a wasteful number, since it uses less digits than its factorization.

428587288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847394 (or 1847390 counting only the distinct ones).

The product of its digits is 2293760, while the sum is 52.

The square root of 428587288 is about 20702.3498183177. The cubic root of 428587288 is about 753.9567410399.

The spelling of 428587288 in words is "four hundred twenty-eight million, five hundred eighty-seven thousand, two hundred eighty-eight".