22135472 has 40 divisors (see below), whose sum is σ = 44528400. Its totient is φ = 10651392.

The previous prime is 22135459. The next prime is 22135481. The reversal of 22135472 is 27453122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82154 + ... + 82422.

It is an arithmetic number, because the mean of its divisors is an integer number (1113210).

Almost surely, 2^22135472 is an apocalyptic number.

It is an amenable number.

22135472 is an abundant number, since it is smaller than the sum of its proper divisors (22392928).

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

22135472 is a wasteful number, since it uses less digits than its factorization.

22135472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 447 counting only the distinct ones).

The product of its digits is 3360, while the sum is 26.

The square root of 22135472 is about 4704.8349599109. The cubic root of 22135472 is about 280.7779048261. Note that the first 3 decimals are identical.

Adding to 22135472 its reverse (27453122), we get a palindrome (49588594).

The spelling of 22135472 in words is "twenty-two million, one hundred thirty-five thousand, four hundred seventy-two".