428975018 has 16 divisors (see below), whose sum is σ = 672122880. Its totient is φ = 205077936.

The previous prime is 428975011. The next prime is 428975021. The reversal of 428975018 is 810579824.

It is a self number, because there is not a number n which added to its sum of digits gives 428975018.

It is not an unprimeable number, because it can be changed into a prime (428975011) 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, 29930 + ... + 41877.

It is an arithmetic number, because the mean of its divisors is an integer number (42007680).

Almost surely, 2^428975018 is an apocalyptic number.

428975018 is a deficient number, since it is larger than the sum of its proper divisors (243147862).

428975018 is a wasteful number, since it uses less digits than its factorization.

428975018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71941.

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 428975018 is about 20711.7120972652. The cubic root of 428975018 is about 754.1840331576.

The spelling of 428975018 in words is "four hundred twenty-eight million, nine hundred seventy-five thousand, eighteen".