20246313 has 4 divisors (see below), whose sum is σ = 26995088. Its totient is φ = 13497540.

The previous prime is 20246309. The next prime is 20246329. The reversal of 20246313 is 31364202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20246313 - 2² = 20246309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20246313.

It is not an unprimeable number, because it can be changed into a prime (20241313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3374383 + ... + 3374388.

It is an arithmetic number, because the mean of its divisors is an integer number (6748772).

Almost surely, 2^20246313 is an apocalyptic number.

It is an amenable number.

20246313 is a deficient number, since it is larger than the sum of its proper divisors (6748775).

20246313 is an equidigital number, since it uses as much as digits as its factorization.

20246313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6748774.

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

The square root of 20246313 is about 4499.5903146842. The cubic root of 20246313 is about 272.5515453933.

The spelling of 20246313 in words is "twenty million, two hundred forty-six thousand, three hundred thirteen".