20444023413 has 24 divisors (see below), whose sum is σ = 32229231840. Its totient is φ = 12384776160.

The previous prime is 20444023307. The next prime is 20444023429. The reversal of 20444023413 is 31432044402.

It is a happy number.

20444023413 is a `hidden beast` number, since 204 + 4 + 40 + 2 + 3 + 413 = 666.

It is not a de Polignac number, because 20444023413 - 2¹² = 20444019317 is a prime.

It is a super-2 number, since 2×20444023413² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20444023463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 181978 + ... + 272036.

It is an arithmetic number, because the mean of its divisors is an integer number (1342884660).

Almost surely, 2^20444023413 is an apocalyptic number.

It is an amenable number.

20444023413 is a deficient number, since it is larger than the sum of its proper divisors (11785208427).

20444023413 is a wasteful number, since it uses less digits than its factorization.

20444023413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92369 (or 92366 counting only the distinct ones).

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

Adding to 20444023413 its reverse (31432044402), we get a palindrome (51876067815).

The spelling of 20444023413 in words is "twenty billion, four hundred forty-four million, twenty-three thousand, four hundred thirteen".