22081258 has 8 divisors (see below), whose sum is σ = 33826752. Its totient is φ = 10805676.

The previous prime is 22081253. The next prime is 22081271. The reversal of 22081258 is 85218022.

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 (22081253) 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, 117360 + ... + 117547.

It is an arithmetic number, because the mean of its divisors is an integer number (4228344).

Almost surely, 2^22081258 is an apocalyptic number.

22081258 is a deficient number, since it is larger than the sum of its proper divisors (11745494).

22081258 is a wasteful number, since it uses less digits than its factorization.

22081258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234956.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 22081258 is about 4699.0699079712. The cubic root of 22081258 is about 280.5484911872.

The spelling of 22081258 in words is "twenty-two million, eighty-one thousand, two hundred fifty-eight".