428990568 has 64 divisors (see below), whose sum is σ = 1085952960. Its totient is φ = 141213696.

The previous prime is 428990567. The next prime is 428990579. The reversal of 428990568 is 865099824.

It is a self number, because there is not a number n which added to its sum of digits gives 428990568.

It is not an unprimeable number, because it can be changed into a prime (428990567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 968155 + ... + 968597.

It is an arithmetic number, because the mean of its divisors is an integer number (16968015).

Almost surely, 2^428990568 is an apocalyptic number.

It is an amenable number.

428990568 is an abundant number, since it is smaller than the sum of its proper divisors (656962392).

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

428990568 is a wasteful number, since it uses less digits than its factorization.

428990568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The square root of 428990568 is about 20712.0874853309. The cubic root of 428990568 is about 754.1931459027.

The spelling of 428990568 in words is "four hundred twenty-eight million, nine hundred ninety thousand, five hundred sixty-eight".