22002018 has 8 divisors (see below), whose sum is σ = 44004048. Its totient is φ = 7334004.

The previous prime is 22002011. The next prime is 22002023. The reversal of 22002018 is 81020022.

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

22002018 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 22001988 and 22002006.

It is not an unprimeable number, because it can be changed into a prime (22002011) 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, 1833496 + ... + 1833507.

It is an arithmetic number, because the mean of its divisors is an integer number (5500506).

Almost surely, 2^22002018 is an apocalyptic number.

22002018 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.

22002018 is a wasteful number, since it uses less digits than its factorization.

22002018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3667008.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 22002018 is about 4690.6308744134. The cubic root of 22002018 is about 280.2125002511.

The spelling of 22002018 in words is "twenty-two million, two thousand, eighteen".