20996026 has 8 divisors (see below), whose sum is σ = 33151680. Its totient is φ = 9945468.

The previous prime is 20996023. The next prime is 20996047. The reversal of 20996026 is 62069902.

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

It is a junction number, because it is equal to n+sod(n) for n = 20995982 and 20996000.

It is not an unprimeable number, because it can be changed into a prime (20996023) 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, 276226 + ... + 276301.

It is an arithmetic number, because the mean of its divisors is an integer number (4143960).

Almost surely, 2^20996026 is an apocalyptic number.

20996026 is a deficient number, since it is larger than the sum of its proper divisors (12155654).

20996026 is a wasteful number, since it uses less digits than its factorization.

20996026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552548.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 20996026 is about 4582.1420754926. The cubic root of 20996026 is about 275.8750134217.

The spelling of 20996026 in words is "twenty million, nine hundred ninety-six thousand, twenty-six".