42328018 has 8 divisors (see below), whose sum is σ = 63912960. Its totient is φ = 21023700.

The previous prime is 42328007. The next prime is 42328019. The reversal of 42328018 is 81082324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42328018² = 3583322215616648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42328019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69778 + ... + 70381.

It is an arithmetic number, because the mean of its divisors is an integer number (7989120).

Almost surely, 2^42328018 is an apocalyptic number.

42328018 is a deficient number, since it is larger than the sum of its proper divisors (21584942).

42328018 is a wasteful number, since it uses less digits than its factorization.

42328018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140312.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 42328018 is about 6505.9986166614. The cubic root of 42328018 is about 348.5052389487.

It can be divided in two parts, 423 and 28018, that added together give a triangular number (28441 = T₂₃₈).

The spelling of 42328018 in words is "forty-two million, three hundred twenty-eight thousand, eighteen".