42204018 has 8 divisors (see below), whose sum is σ = 84408048. Its totient is φ = 14068004.

The previous prime is 42204017. The next prime is 42204049. The reversal of 42204018 is 81040224.

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

42204018 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 42203985 and 42204003.

It is not an unprimeable number, because it can be changed into a prime (42204017) 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, 3516996 + ... + 3517007.

It is an arithmetic number, because the mean of its divisors is an integer number (10551006).

Almost surely, 2^42204018 is an apocalyptic number.

42204018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42204018 is a wasteful number, since it uses less digits than its factorization.

42204018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7034008.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 42204018 is about 6496.4619601749. The cubic root of 42204018 is about 348.1645905270.

It can be divided in two parts, 4 and 2204018, that added together give a palindrome (2204022).

The spelling of 42204018 in words is "forty-two million, two hundred four thousand, eighteen".