428625288 has 96 divisors (see below), whose sum is σ = 1428772800. Its totient is φ = 113042304.

The previous prime is 428625287. The next prime is 428625343. The reversal of 428625288 is 882526824.

428625288 is a `hidden beast` number, since 42 + 86 + 2 + 528 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (428625283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26158 + ... + 39261.

It is an arithmetic number, because the mean of its divisors is an integer number (14883050).

Almost surely, 2^428625288 is an apocalyptic number.

It is an amenable number.

428625288 is an abundant number, since it is smaller than the sum of its proper divisors (1000147512).

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

428625288 is a wasteful number, since it uses less digits than its factorization.

428625288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65451 (or 65444 counting only the distinct ones).

The product of its digits is 491520, while the sum is 45.

The square root of 428625288 is about 20703.2675681884. The cubic root of 428625288 is about 753.9790231671.

The spelling of 428625288 in words is "four hundred twenty-eight million, six hundred twenty-five thousand, two hundred eighty-eight".