22135470 has 32 divisors (see below), whose sum is σ = 60715008. Its totient is φ = 5059488.

The previous prime is 22135459. The next prime is 22135481. The reversal of 22135470 is 7453122.

It is an interprime number because it is at equal distance from previous prime (22135459) and next prime (22135481).

It is a self number, because there is not a number n which added to its sum of digits gives 22135470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52494 + ... + 52913.

It is an arithmetic number, because the mean of its divisors is an integer number (1897344).

Almost surely, 2^22135470 is an apocalyptic number.

22135470 is an abundant number, since it is smaller than the sum of its proper divisors (38579538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22135470 is a wasteful number, since it uses less digits than its factorization.

22135470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105424.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 22135470 is about 4704.8347473636. The cubic root of 22135470 is about 280.7778963697. Note that the first 3 decimals are identical.

Adding to 22135470 its reverse (7453122), we get a palindrome (29588592).

The spelling of 22135470 in words is "twenty-two million, one hundred thirty-five thousand, four hundred seventy".