20798994 has 8 divisors (see below), whose sum is σ = 41598000. Its totient is φ = 6932996.

The previous prime is 20798993. The next prime is 20799017. The reversal of 20798994 is 49989702.

It is a happy number.

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

20798994 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20798993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1733244 + ... + 1733255.

It is an arithmetic number, because the mean of its divisors is an integer number (5199750).

Almost surely, 2^20798994 is an apocalyptic number.

20798994 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.

20798994 is a wasteful number, since it uses less digits than its factorization.

20798994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3466504.

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 20798994 is about 4560.5914090170. The cubic root of 20798994 is about 275.0093396277.

The spelling of 20798994 in words is "twenty million, seven hundred ninety-eight thousand, nine hundred ninety-four".