20444302413 has 12 divisors (see below), whose sum is σ = 29531952060. Its totient is φ = 13628938176.

The previous prime is 20444302349. The next prime is 20444302421. The reversal of 20444302413 is 31420344402.

It is a happy number.

20444302413 is a `hidden beast` number, since 204 + 4 + 43 + 0 + 2 + 413 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1444988169 + 18999314244 = 38013^2 + 137838^2 .

It is not a de Polignac number, because 20444302413 - 2⁶ = 20444302349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20444302913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 287833 + ... + 351761.

It is an arithmetic number, because the mean of its divisors is an integer number (2460996005).

Almost surely, 2^20444302413 is an apocalyptic number.

It is an amenable number.

20444302413 is a deficient number, since it is larger than the sum of its proper divisors (9087649647).

20444302413 is a wasteful number, since it uses less digits than its factorization.

20444302413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99468 (or 99465 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 20444302413 its reverse (31420344402), we get a palindrome (51864646815).

The spelling of 20444302413 in words is "twenty billion, four hundred forty-four million, three hundred two thousand, four hundred thirteen".