20422448 has 40 divisors (see below), whose sum is σ = 40711680. Its totient is φ = 9921600.

The previous prime is 20422447. The next prime is 20422499. The reversal of 20422448 is 84422402.

It is not an unprimeable number, because it can be changed into a prime (20422447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135173 + ... + 135323.

It is an arithmetic number, because the mean of its divisors is an integer number (1017792).

Almost surely, 2^20422448 is an apocalyptic number.

It is an amenable number.

20422448 is a deficient number, since it is larger than the sum of its proper divisors (20289232).

20422448 is a wasteful number, since it uses less digits than its factorization.

20422448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

The square root of 20422448 is about 4519.1202683708. The cubic root of 20422448 is about 273.3396283830.

The spelling of 20422448 in words is "twenty million, four hundred twenty-two thousand, four hundred forty-eight".