428359660 has 24 divisors (see below), whose sum is σ = 900345600. Its totient is φ = 171193344.

The previous prime is 428359637. The next prime is 428359691. The reversal of 428359660 is 66953824.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15541 + ... + 33139.

It is an arithmetic number, because the mean of its divisors is an integer number (37514400).

Almost surely, 2^428359660 is an apocalyptic number.

It is an amenable number.

428359660 is an abundant number, since it is smaller than the sum of its proper divisors (471985940).

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

428359660 is a wasteful number, since it uses less digits than its factorization.

428359660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18825 (or 18823 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 428359660 is about 20696.8514513682. The cubic root of 428359660 is about 753.8232388244.

The spelling of 428359660 in words is "four hundred twenty-eight million, three hundred fifty-nine thousand, six hundred sixty".