32226018 has 64 divisors (see below), whose sum is σ = 73872000. Its totient is φ = 9282560.

The previous prime is 32226017. The next prime is 32226037. The reversal of 32226018 is 81062223.

It is a super-2 number, since 2×32226018² = 2077032472272648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (32226011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216208 + ... + 216356.

It is an arithmetic number, because the mean of its divisors is an integer number (1154250).

Almost surely, 2^32226018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32226018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36936000).

32226018 is an abundant number, since it is smaller than the sum of its proper divisors (41645982).

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

32226018 is a wasteful number, since it uses less digits than its factorization.

32226018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 32226018 is about 5676.7964557486. The cubic root of 32226018 is about 318.2259183352.

The spelling of 32226018 in words is "thirty-two million, two hundred twenty-six thousand, eighteen".