20789366 has 12 divisors (see below), whose sum is σ = 33767892. Its totient is φ = 9594936.

The previous prime is 20789359. The next prime is 20789371. The reversal of 20789366 is 66398702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30416 + ... + 31091.

It is an arithmetic number, because the mean of its divisors is an integer number (2813991).

Almost surely, 2^20789366 is an apocalyptic number.

20789366 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20789366 is a deficient number, since it is larger than the sum of its proper divisors (12978526).

20789366 is a wasteful number, since it uses less digits than its factorization.

20789366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61535 (or 61522 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 20789366 is about 4559.5357219787. The cubic root of 20789366 is about 274.9668984951.

The spelling of 20789366 in words is "twenty million, seven hundred eighty-nine thousand, three hundred sixty-six".