22128310 has 8 divisors (see below), whose sum is σ = 39830976. Its totient is φ = 8851320.

The previous prime is 22128307. The next prime is 22128311. The reversal of 22128310 is 1382122.

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

It is a super-2 number, since 2×22128310² = 979324206912200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22128311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106406 + ... + 1106425.

It is an arithmetic number, because the mean of its divisors is an integer number (4978872).

Almost surely, 2^22128310 is an apocalyptic number.

22128310 is a deficient number, since it is larger than the sum of its proper divisors (17702666).

22128310 is a wasteful number, since it uses less digits than its factorization.

22128310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212838.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 22128310 is about 4704.0737664284. The cubic root of 22128310 is about 280.7476193748.

The spelling of 22128310 in words is "twenty-two million, one hundred twenty-eight thousand, three hundred ten".