20340444033 has 144 divisors (see below), whose sum is σ = 38016800640. Its totient is φ = 10640927232.

The previous prime is 20340443999. The next prime is 20340444041. The reversal of 20340444033 is 33044404302.

It is not a de Polignac number, because 20340444033 - 2¹⁰ = 20340443009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 20340443988 and 20340444006.

It is not an unprimeable number, because it can be changed into a prime (20340444233) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 49731933 + ... + 49732341.

It is an arithmetic number, because the mean of its divisors is an integer number (264005560).

Almost surely, 2^20340444033 is an apocalyptic number.

It is an amenable number.

20340444033 is a deficient number, since it is larger than the sum of its proper divisors (17676356607).

20340444033 is a wasteful number, since it uses less digits than its factorization.

20340444033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 20340444033 its reverse (33044404302), we get a palindrome (53384848335).

The spelling of 20340444033 in words is "twenty billion, three hundred forty million, four hundred forty-four thousand, thirty-three".