20316046 has 16 divisors (see below), whose sum is σ = 31078224. Its totient is φ = 9958464.

The previous prime is 20316041. The next prime is 20316077. The reversal of 20316046 is 64061302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20316041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32836 + ... + 33448.

It is an arithmetic number, because the mean of its divisors is an integer number (1942389).

Almost surely, 2^20316046 is an apocalyptic number.

20316046 is a deficient number, since it is larger than the sum of its proper divisors (10762178).

20316046 is a wasteful number, since it uses less digits than its factorization.

20316046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 20316046 is about 4507.3324705418. The cubic root of 20316046 is about 272.8640970893.

Adding to 20316046 its reverse (64061302), we get a palindrome (84377348).

The spelling of 20316046 in words is "twenty million, three hundred sixteen thousand, forty-six".