428232984 has 32 divisors (see below), whose sum is σ = 1073358000. Its totient is φ = 142374272.

The previous prime is 428232971. The next prime is 428232989. The reversal of 428232984 is 489232824.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428232989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13599 + ... + 32270.

Almost surely, 2^428232984 is an apocalyptic number.

It is an amenable number.

428232984 is an abundant number, since it is smaller than the sum of its proper divisors (645125016).

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

428232984 is a wasteful number, since it uses less digits than its factorization.

428232984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46267 (or 46263 counting only the distinct ones).

The product of its digits is 221184, while the sum is 42.

The square root of 428232984 is about 20693.7909528438. The cubic root of 428232984 is about 753.7489237600.

The spelling of 428232984 in words is "four hundred twenty-eight million, two hundred thirty-two thousand, nine hundred eighty-four".