20746850 has 24 divisors (see below), whose sum is σ = 39322260. Its totient is φ = 8141120.

The previous prime is 20746837. The next prime is 20746853. The reversal of 20746850 is 5864702.

It can be written as a sum of positive squares in 6 ways, for example, as 5669161 + 15077689 = 2381^2 + 3883^2 .

It is not an unprimeable number, because it can be changed into a prime (20746853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1265 + ... + 6564.

Almost surely, 2^20746850 is an apocalyptic number.

20746850 is a deficient number, since it is larger than the sum of its proper divisors (18575410).

20746850 is a wasteful number, since it uses less digits than its factorization.

20746850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7894 (or 7889 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 20746850 is about 4554.8710190301. The cubic root of 20746850 is about 274.7793271013.

The spelling of 20746850 in words is "twenty million, seven hundred forty-six thousand, eight hundred fifty".