22241278 has 8 divisors (see below), whose sum is σ = 33737040. Its totient is φ = 10995600.

The previous prime is 22241273. The next prime is 22241279. The reversal of 22241278 is 87214222.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22241273) 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, 62298 + ... + 62653.

It is an arithmetic number, because the mean of its divisors is an integer number (4217130).

Almost surely, 2^22241278 is an apocalyptic number.

22241278 is a deficient number, since it is larger than the sum of its proper divisors (11495762).

22241278 is a wasteful number, since it uses less digits than its factorization.

22241278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125042.

The product of its digits is 3584, while the sum is 28.

The square root of 22241278 is about 4716.0659452556. The cubic root of 22241278 is about 281.2245601352.

The spelling of 22241278 in words is "twenty-two million, two hundred forty-one thousand, two hundred seventy-eight".