20494448 has 40 divisors (see below), whose sum is σ = 43934688. Its totient is φ = 9199872.

The previous prime is 20494433. The next prime is 20494493. The reversal of 20494448 is 84449402.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6365 + ... + 9027.

Almost surely, 2^20494448 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 20494448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21967344).

20494448 is an abundant number, since it is smaller than the sum of its proper divisors (23440240).

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

20494448 is a wasteful number, since it uses less digits than its factorization.

20494448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721 (or 2715 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 20494448 is about 4527.0794117179. The cubic root of 20494448 is about 273.6604741897.

The spelling of 20494448 in words is "twenty million, four hundred ninety-four thousand, four hundred forty-eight".