428326832 has 40 divisors (see below), whose sum is σ = 885099600. Its totient is φ = 200097792.

The previous prime is 428326831. The next prime is 428326841. The reversal of 428326832 is 238623824.

It is a super-2 number, since 2×428326832² = 366927750022312448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (428326831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32144 + ... + 43472.

It is an arithmetic number, because the mean of its divisors is an integer number (22127490).

Almost surely, 2^428326832 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 428326832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442549800).

428326832 is an abundant number, since it is smaller than the sum of its proper divisors (456772768).

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

428326832 is a wasteful number, since it uses less digits than its factorization.

428326832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11493 (or 11487 counting only the distinct ones).

The product of its digits is 110592, while the sum is 38.

The square root of 428326832 is about 20696.0583686846. The cubic root of 428326832 is about 753.8039815321.

The spelling of 428326832 in words is "four hundred twenty-eight million, three hundred twenty-six thousand, eight hundred thirty-two".