42928018 has 48 divisors (see below), whose sum is σ = 78369984. Its totient is φ = 17569440.

The previous prime is 42928001. The next prime is 42928019. The reversal of 42928018 is 81082924.

It is not an unprimeable number, because it can be changed into a prime (42928019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 256971 + ... + 257137.

It is an arithmetic number, because the mean of its divisors is an integer number (1632708).

Almost surely, 2^42928018 is an apocalyptic number.

42928018 is a deficient number, since it is larger than the sum of its proper divisors (35441966).

42928018 is a wasteful number, since it uses less digits than its factorization.

42928018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 42928018 is about 6551.9476493635. The cubic root of 42928018 is about 350.1442072421.

The spelling of 42928018 in words is "forty-two million, nine hundred twenty-eight thousand, eighteen".