20354448 has 80 divisors (see below), whose sum is σ = 55710720. Its totient is φ = 6390912.

The previous prime is 20354441. The next prime is 20354449. The reversal of 20354448 is 84445302.

It is not an unprimeable number, because it can be changed into a prime (20354441) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 113623 + ... + 113801.

It is an arithmetic number, because the mean of its divisors is an integer number (696384).

Almost surely, 2^20354448 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 20354448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27855360).

20354448 is an abundant number, since it is smaller than the sum of its proper divisors (35356272).

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

20354448 is a wasteful number, since it uses less digits than its factorization.

20354448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 20354448 is about 4511.5904069408. The cubic root of 20354448 is about 273.0359141792.

It can be divided in two parts, 20354 and 448, that added together give a palindrome (20802).

The spelling of 20354448 in words is "twenty million, three hundred fifty-four thousand, four hundred forty-eight".