428332488 has 32 divisors (see below), whose sum is σ = 1072721760. Its totient is φ = 142525440.

The previous prime is 428332483. The next prime is 428332517. The reversal of 428332488 is 884233824.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (428332481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1618 + ... + 29313.

It is an arithmetic number, because the mean of its divisors is an integer number (33522555).

Almost surely, 2^428332488 is an apocalyptic number.

It is an amenable number.

428332488 is an abundant number, since it is smaller than the sum of its proper divisors (644389272).

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

428332488 is a wasteful number, since it uses less digits than its factorization.

428332488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31517 (or 31513 counting only the distinct ones).

The product of its digits is 294912, while the sum is 42.

The square root of 428332488 is about 20696.1950126104. The cubic root of 428332488 is about 753.8072994786.

The spelling of 428332488 in words is "four hundred twenty-eight million, three hundred thirty-two thousand, four hundred eighty-eight".