240022218 has 16 divisors (see below), whose sum is σ = 508282560. Its totient is φ = 75301056.

The previous prime is 240022217. The next prime is 240022229. The reversal of 240022218 is 812220042.

It is a happy number.

It is a super-2 number, since 2×240022218² = 115221330267279048, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 240022194 and 240022203.

It is not an unprimeable number, because it can be changed into a prime (240022217) 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, 1176478 + ... + 1176681.

It is an arithmetic number, because the mean of its divisors is an integer number (31767660).

Almost surely, 2^240022218 is an apocalyptic number.

240022218 is an abundant number, since it is smaller than the sum of its proper divisors (268260342).

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

240022218 is a wasteful number, since it uses less digits than its factorization.

240022218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353181.

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

The square root of 240022218 is about 15492.6504511010. The cubic root of 240022218 is about 621.4656774023.

The spelling of 240022218 in words is "two hundred forty million, twenty-two thousand, two hundred eighteen".