20460013 has 4 divisors (see below), whose sum is σ = 23382880. Its totient is φ = 17537148.

The previous prime is 20460007. The next prime is 20460019. The reversal of 20460013 is 31006402.

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 an interprime number because it is at equal distance from previous prime (20460007) and next prime (20460019).

It is a cyclic number.

It is not a de Polignac number, because 20460013 - 2⁵ = 20459981 is a prime.

It is a super-2 number, since 2×20460013² = 837224263920338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20460019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1461423 + ... + 1461436.

It is an arithmetic number, because the mean of its divisors is an integer number (5845720).

Almost surely, 2^20460013 is an apocalyptic number.

It is an amenable number.

20460013 is a deficient number, since it is larger than the sum of its proper divisors (2922867).

20460013 is an equidigital number, since it uses as much as digits as its factorization.

20460013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2922866.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 20460013 is about 4523.2745881717. The cubic root of 20460013 is about 273.5071191415.

Adding to 20460013 its reverse (31006402), we get a palindrome (51466415).

The spelling of 20460013 in words is "twenty million, four hundred sixty thousand, thirteen".