20313246 has 16 divisors (see below), whose sum is σ = 41937408. Its totient is φ = 6552600.

The previous prime is 20313229. The next prime is 20313247. The reversal of 20313246 is 64231302.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313247) 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, 54420 + ... + 54791.

It is an arithmetic number, because the mean of its divisors is an integer number (2621088).

Almost surely, 2^20313246 is an apocalyptic number.

20313246 is an abundant number, since it is smaller than the sum of its proper divisors (21624162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20313246 is a wasteful number, since it uses less digits than its factorization.

20313246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109247.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 20313246 is about 4507.0218548394. The cubic root of 20313246 is about 272.8515609463.

Adding to 20313246 its reverse (64231302), we get a palindrome (84544548).

The spelling of 20313246 in words is "twenty million, three hundred thirteen thousand, two hundred forty-six".