20442403233 has 24 divisors (see below), whose sum is σ = 34208473728. Its totient is φ = 11521351872.

The previous prime is 20442403231. The next prime is 20442403273. The reversal of 20442403233 is 33230424402.

20442403233 is a `hidden beast` number, since 2 + 0 + 4 + 424 + 0 + 3 + 233 = 666.

It is not a de Polignac number, because 20442403233 - 2¹ = 20442403231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20442403197 and 20442403206.

It is not an unprimeable number, because it can be changed into a prime (20442403231) 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, 2217885 + ... + 2227082.

It is an arithmetic number, because the mean of its divisors is an integer number (1425353072).

Almost surely, 2^20442403233 is an apocalyptic number.

It is an amenable number.

20442403233 is a deficient number, since it is larger than the sum of its proper divisors (13766070495).

20442403233 is a wasteful number, since it uses less digits than its factorization.

20442403233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4445053 (or 4445050 counting only the distinct ones).

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

Adding to 20442403233 its reverse (33230424402), we get a palindrome (53672827635).

The spelling of 20442403233 in words is "twenty billion, four hundred forty-two million, four hundred three thousand, two hundred thirty-three".