22545398 has 4 divisors (see below), whose sum is σ = 33818100. Its totient is φ = 11272698.

The previous prime is 22545379. The next prime is 22545407. The reversal of 22545398 is 89354522.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5636348 + ... + 5636351.

It is an arithmetic number, because the mean of its divisors is an integer number (8454525).

Almost surely, 2^22545398 is an apocalyptic number.

22545398 is a deficient number, since it is larger than the sum of its proper divisors (11272702).

22545398 is a wasteful number, since it uses less digits than its factorization.

22545398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11272701.

The product of its digits is 86400, while the sum is 38.

The square root of 22545398 is about 4748.1994482119. The cubic root of 22545398 is about 282.5005529005.

The spelling of 22545398 in words is "twenty-two million, five hundred forty-five thousand, three hundred ninety-eight".