20846976 has 48 divisors (see below), whose sum is σ = 55613460. Its totient is φ = 6919168.

The previous prime is 20846963. The next prime is 20846977. The reversal of 20846976 is 67964802.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×20846976³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20846977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89356 + ... + 89588.

Almost surely, 2^20846976 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 20846976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27806730).

20846976 is an abundant number, since it is smaller than the sum of its proper divisors (34766484).

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

20846976 is an frugal number, since it uses more digits than its factorization.

20846976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 20846976 is about 4565.8488805478. The cubic root of 20846976 is about 275.2206537591.

The spelling of 20846976 in words is "twenty million, eight hundred forty-six thousand, nine hundred seventy-six".