424546728 has 16 divisors (see below), whose sum is σ = 1061366880. Its totient is φ = 141515568.

The previous prime is 424546709. The next prime is 424546751. The reversal of 424546728 is 827645424.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 424546728.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8844700 + ... + 8844747.

It is an arithmetic number, because the mean of its divisors is an integer number (66335430).

Almost surely, 2^424546728 is an apocalyptic number.

It is an amenable number.

424546728 is an abundant number, since it is smaller than the sum of its proper divisors (636820152).

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

424546728 is a wasteful number, since it uses less digits than its factorization.

424546728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17689456 (or 17689452 counting only the distinct ones).

The product of its digits is 430080, while the sum is 42.

The square root of 424546728 is about 20604.5317345481. The cubic root of 424546728 is about 751.5799157070.

The spelling of 424546728 in words is "four hundred twenty-four million, five hundred forty-six thousand, seven hundred twenty-eight".