22421024 has 24 divisors (see below), whose sum is σ = 44262288. Its totient is φ = 11179840.

The previous prime is 22421023. The next prime is 22421027. The reversal of 22421024 is 42012422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22420993 and 22421011.

It is not an unprimeable number, because it can be changed into a prime (22421023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14999 + ... + 16425.

It is an arithmetic number, because the mean of its divisors is an integer number (1844262).

Almost surely, 2^22421024 is an apocalyptic number.

It is an amenable number.

22421024 is a deficient number, since it is larger than the sum of its proper divisors (21841264).

22421024 is a wasteful number, since it uses less digits than its factorization.

22421024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928 (or 1920 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 22421024 is about 4735.0843709484. The cubic root of 22421024 is about 281.9801136154.

Adding to 22421024 its reverse (42012422), we get a palindrome (64433446).

The spelling of 22421024 in words is "twenty-two million, four hundred twenty-one thousand, twenty-four".