20386316 has 24 divisors (see below), whose sum is σ = 37717680. Its totient is φ = 9614592.

The previous prime is 20386283. The next prime is 20386319. The reversal of 20386316 is 61368302.

It is not an unprimeable number, because it can be changed into a prime (20386319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23360 + ... + 24216.

It is an arithmetic number, because the mean of its divisors is an integer number (1571570).

Almost surely, 2^20386316 is an apocalyptic number.

It is an amenable number.

20386316 is a deficient number, since it is larger than the sum of its proper divisors (17331364).

20386316 is a wasteful number, since it uses less digits than its factorization.

20386316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193 (or 1191 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 20386316 is about 4515.1208178741. The cubic root of 20386316 is about 273.1783330334.

It can be divided in two parts, 20386 and 316, that added together give a palindrome (20702).

The spelling of 20386316 in words is "twenty million, three hundred eighty-six thousand, three hundred sixteen".