22438548 has 36 divisors (see below), whose sum is σ = 61877088. Its totient is φ = 6799440.

The previous prime is 22438511. The next prime is 22438553. The reversal of 22438548 is 84583422.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27936 + ... + 28727.

It is an arithmetic number, because the mean of its divisors is an integer number (1718808).

Almost surely, 2^22438548 is an apocalyptic number.

It is an amenable number.

22438548 is an abundant number, since it is smaller than the sum of its proper divisors (39438540).

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

22438548 is a wasteful number, since it uses less digits than its factorization.

22438548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56684 (or 56679 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 22438548 is about 4736.9344517314. The cubic root of 22438548 is about 282.0535585613.

The spelling of 22438548 in words is "twenty-two million, four hundred thirty-eight thousand, five hundred forty-eight".