20366650 has 48 divisors (see below), whose sum is σ = 39651480. Its totient is φ = 7776000.

The previous prime is 20366641. The next prime is 20366657. The reversal of 20366650 is 5666302.

It can be written as a sum of positive squares in 12 ways, for example, as 11950849 + 8415801 = 3457^2 + 2901^2 .

It is not an unprimeable number, because it can be changed into a prime (20366657) 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 23 ways as a sum of consecutive naturals, for example, 186796 + ... + 186904.

Almost surely, 2^20366650 is an apocalyptic number.

20366650 is a deficient number, since it is larger than the sum of its proper divisors (19284830).

20366650 is a wasteful number, since it uses less digits than its factorization.

20366650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 20366650 is about 4512.9424990797. The cubic root of 20366650 is about 273.0904627593.

The spelling of 20366650 in words is "twenty million, three hundred sixty-six thousand, six hundred fifty".