428932460 has 48 divisors (see below), whose sum is σ = 985001472. Its totient is φ = 155601600.

The previous prime is 428932433. The next prime is 428932477. The reversal of 428932460 is 64239824.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99755 + ... + 103965.

It is an arithmetic number, because the mean of its divisors is an integer number (20520864).

Almost surely, 2^428932460 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 428932460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492500736).

428932460 is an abundant number, since it is smaller than the sum of its proper divisors (556069012).

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

428932460 is a wasteful number, since it uses less digits than its factorization.

428932460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4694 (or 4692 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 428932460 is about 20710.6846820669. The cubic root of 428932460 is about 754.1590918252.

The spelling of 428932460 in words is "four hundred twenty-eight million, nine hundred thirty-two thousand, four hundred sixty".