20786348 has 36 divisors (see below), whose sum is σ = 40643736. Its totient is φ = 9292800.

The previous prime is 20786347. The next prime is 20786351. The reversal of 20786348 is 84368702.

It is not an unprimeable number, because it can be changed into a prime (20786347) 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 11 ways as a sum of consecutive naturals, for example, 32108 + ... + 32748.

Almost surely, 2^20786348 is an apocalyptic number.

It is an amenable number.

20786348 is a deficient number, since it is larger than the sum of its proper divisors (19857388).

20786348 is a wasteful number, since it uses less digits than its factorization.

20786348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 20786348 is about 4559.2047552177. The cubic root of 20786348 is about 274.9535921689.

The spelling of 20786348 in words is "twenty million, seven hundred eighty-six thousand, three hundred forty-eight".