22484457 has 6 divisors (see below), whose sum is σ = 32477562. Its totient is φ = 14989632.

The previous prime is 22484453. The next prime is 22484459. The reversal of 22484457 is 75448422.

It can be written as a sum of positive squares in only one way, i.e., 18224361 + 4260096 = 4269^2 + 2064^2 .

It is not a de Polignac number, because 22484457 - 2² = 22484453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22484453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1249128 + ... + 1249145.

It is an arithmetic number, because the mean of its divisors is an integer number (5412927).

Almost surely, 2^22484457 is an apocalyptic number.

It is an amenable number.

22484457 is a deficient number, since it is larger than the sum of its proper divisors (9993105).

22484457 is a wasteful number, since it uses less digits than its factorization.

22484457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498279 (or 2498276 counting only the distinct ones).

The product of its digits is 71680, while the sum is 36.

The square root of 22484457 is about 4741.7778311515. Note that the first 3 decimals coincide. The cubic root of 22484457 is about 282.2457869208.

It can be divided in two parts, 224 and 84457, that added together give a square (84681 = 291²).

The spelling of 22484457 in words is "twenty-two million, four hundred eighty-four thousand, four hundred fifty-seven".