22473538 has 4 divisors (see below), whose sum is σ = 33710310. Its totient is φ = 11236768.

The previous prime is 22473427. The next prime is 22473547. The reversal of 22473538 is 83537422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14311089 + 8162449 = 3783^2 + 2857^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5618383 + ... + 5618386.

Almost surely, 2^22473538 is an apocalyptic number.

22473538 is a deficient number, since it is larger than the sum of its proper divisors (11236772).

22473538 is a wasteful number, since it uses less digits than its factorization.

22473538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11236771.

The product of its digits is 40320, while the sum is 34.

The square root of 22473538 is about 4740.6263299273. The cubic root of 22473538 is about 282.2000910466.

The spelling of 22473538 in words is "twenty-two million, four hundred seventy-three thousand, five hundred thirty-eight".