20892946 has 8 divisors (see below), whose sum is σ = 32350464. Its totient is φ = 10109460.

The previous prime is 20892931. The next prime is 20892953. The reversal of 20892946 is 64929802.

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 = 20892899 and 20892908.

It is an unprimeable number.

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, 168430 + ... + 168553.

It is an arithmetic number, because the mean of its divisors is an integer number (4043808).

Almost surely, 2^20892946 is an apocalyptic number.

20892946 is a deficient number, since it is larger than the sum of its proper divisors (11457518).

20892946 is a wasteful number, since it uses less digits than its factorization.

20892946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337016.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 20892946 is about 4570.8802215766. The cubic root of 20892946 is about 275.4228030652.

The spelling of 20892946 in words is "twenty million, eight hundred ninety-two thousand, nine hundred forty-six".