20350966 has 4 divisors (see below), whose sum is σ = 30526452. Its totient is φ = 10175482.

The previous prime is 20350963. The next prime is 20350969. The reversal of 20350966 is 66905302.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20350963) and next prime (20350969).

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20350963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5087740 + ... + 5087743.

It is an arithmetic number, because the mean of its divisors is an integer number (7631613).

Almost surely, 2^20350966 is an apocalyptic number.

20350966 is a deficient number, since it is larger than the sum of its proper divisors (10175486).

20350966 is a wasteful number, since it uses less digits than its factorization.

20350966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10175485.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 20350966 is about 4511.2044954757. The cubic root of 20350966 is about 273.0203440317.

It can be divided in two parts, 20350 and 966, that added together give a square (21316 = 146²).

The spelling of 20350966 in words is "twenty million, three hundred fifty thousand, nine hundred sixty-six".