22463421 has 8 divisors (see below), whose sum is σ = 30058944. Its totient is φ = 14921760.

The previous prime is 22463417. The next prime is 22463423. The reversal of 22463421 is 12436422.

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

It is not a de Polignac number, because 22463421 - 2² = 22463417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22463391 and 22463400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22463423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12481 + ... + 14166.

It is an arithmetic number, because the mean of its divisors is an integer number (3757368).

Almost surely, 2^22463421 is an apocalyptic number.

It is an amenable number.

22463421 is a deficient number, since it is larger than the sum of its proper divisors (7595523).

22463421 is a wasteful number, since it uses less digits than its factorization.

22463421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26931.

The product of its digits is 2304, while the sum is 24.

The square root of 22463421 is about 4739.5591567149. The cubic root of 22463421 is about 282.1577383198.

Adding to 22463421 its reverse (12436422), we get a palindrome (34899843).

The spelling of 22463421 in words is "twenty-two million, four hundred sixty-three thousand, four hundred twenty-one".