20842446 has 8 divisors (see below), whose sum is σ = 41684904. Its totient is φ = 6947480.

The previous prime is 20842441. The next prime is 20842453. The reversal of 20842446 is 64424802.

It is a sphenic number, since it is the product of 3 distinct primes.

20842446 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20842441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1736865 + ... + 1736876.

It is an arithmetic number, because the mean of its divisors is an integer number (5210613).

Almost surely, 2^20842446 is an apocalyptic number.

20842446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20842446 is a wasteful number, since it uses less digits than its factorization.

20842446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3473746.

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 20842446 is about 4565.3527793589. The cubic root of 20842446 is about 275.2007173763.

The spelling of 20842446 in words is "twenty million, eight hundred forty-two thousand, four hundred forty-six".