428657068 has 24 divisors (see below), whose sum is σ = 857780000. Its totient is φ = 183610368.

The previous prime is 428657063. The next prime is 428657071. The reversal of 428657068 is 860756824.

It is not an unprimeable number, because it can be changed into a prime (428657063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74188 + ... + 79756.

Almost surely, 2^428657068 is an apocalyptic number.

It is an amenable number.

428657068 is an abundant number, since it is smaller than the sum of its proper divisors (429122932).

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

428657068 is a wasteful number, since it uses less digits than its factorization.

428657068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8329 (or 8327 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 428657068 is about 20704.0350656581. The cubic root of 428657068 is about 753.9976570507.

The spelling of 428657068 in words is "four hundred twenty-eight million, six hundred fifty-seven thousand, sixty-eight".