22281158 has 8 divisors (see below), whose sum is σ = 34874928. Its totient is φ = 10656184.

The previous prime is 22281151. The next prime is 22281179. The reversal of 22281158 is 85118222.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22281158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22281151) 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, 242141 + ... + 242232.

It is an arithmetic number, because the mean of its divisors is an integer number (4359366).

Almost surely, 2^22281158 is an apocalyptic number.

22281158 is a deficient number, since it is larger than the sum of its proper divisors (12593770).

22281158 is a wasteful number, since it uses less digits than its factorization.

22281158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484398.

The product of its digits is 2560, while the sum is 29.

The square root of 22281158 is about 4720.2921519753. The cubic root of 22281158 is about 281.3925441710.

The spelling of 22281158 in words is "twenty-two million, two hundred eighty-one thousand, one hundred fifty-eight".