22241018 has 8 divisors (see below), whose sum is σ = 33407220. Its totient is φ = 11105280.

The previous prime is 22241017. The next prime is 22241029. The reversal of 22241018 is 81014222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19829209 + 2411809 = 4453^2 + 1553^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22241017) 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, 5693 + ... + 8768.

Almost surely, 2^22241018 is an apocalyptic number.

22241018 is a deficient number, since it is larger than the sum of its proper divisors (11166202).

22241018 is a wasteful number, since it uses less digits than its factorization.

22241018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15232.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 22241018 is about 4716.0383798269. The cubic root of 22241018 is about 281.2234642948.

It can be divided in two parts, 22 and 241018, that multiplied together give a triangular number (5302396 = T₃₂₅₆).

The spelling of 22241018 in words is "twenty-two million, two hundred forty-one thousand, eighteen".