22109470 has 8 divisors (see below), whose sum is σ = 39797064. Its totient is φ = 8843784.

The previous prime is 22109459. The next prime is 22109473. The reversal of 22109470 is 7490122.

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 (22109473) 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, 1105464 + ... + 1105483.

It is an arithmetic number, because the mean of its divisors is an integer number (4974633).

Almost surely, 2^22109470 is an apocalyptic number.

22109470 is a deficient number, since it is larger than the sum of its proper divisors (17687594).

22109470 is a wasteful number, since it uses less digits than its factorization.

22109470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210954.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 22109470 is about 4702.0708203939. The cubic root of 22109470 is about 280.6679207602.

Adding to 22109470 its reverse (7490122), we get a palindrome (29599592).

The spelling of 22109470 in words is "twenty-two million, one hundred nine thousand, four hundred seventy".