20969468 has 48 divisors (see below), whose sum is σ = 41912640. Its totient is φ = 9106944.

The previous prime is 20969453. The next prime is 20969471. The reversal of 20969468 is 86496902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106346 + ... + 106542.

It is an arithmetic number, because the mean of its divisors is an integer number (873180).

Almost surely, 2^20969468 is an apocalyptic number.

It is an amenable number.

20969468 is a deficient number, since it is larger than the sum of its proper divisors (20943172).

20969468 is a wasteful number, since it uses less digits than its factorization.

20969468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 20969468 is about 4579.2431689090. The cubic root of 20969468 is about 275.7586456867.

The spelling of 20969468 in words is "twenty million, nine hundred sixty-nine thousand, four hundred sixty-eight".