18622448 has 60 divisors (see below), whose sum is σ = 40028688. Its totient is φ = 8386560.

The previous prime is 18622441. The next prime is 18622453. The reversal of 18622448 is 84422681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18622441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191936 + ... + 192032.

Almost surely, 2^18622448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18622448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20014344).

18622448 is an abundant number, since it is smaller than the sum of its proper divisors (21406240).

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

18622448 is a wasteful number, since it uses less digits than its factorization.

18622448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 183 counting only the distinct ones).

The product of its digits is 24576, while the sum is 35.

The square root of 18622448 is about 4315.3734484978. The cubic root of 18622448 is about 265.0608522885.

The spelling of 18622448 in words is "eighteen million, six hundred twenty-two thousand, four hundred forty-eight".