20110403444 has 12 divisors (see below), whose sum is σ = 35194328064. Its totient is φ = 10054881144.

The previous prime is 20110403437. The next prime is 20110403461. The reversal of 20110403444 is 44430401102.

It is a happy number.

It is a super-2 number, since 2×20110403444² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112397 + ... + 229899.

It is an arithmetic number, because the mean of its divisors is an integer number (2932860672).

Almost surely, 2^20110403444 is an apocalyptic number.

It is an amenable number.

20110403444 is a deficient number, since it is larger than the sum of its proper divisors (15083924620).

20110403444 is a wasteful number, since it uses less digits than its factorization.

20110403444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160294 (or 160292 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20110403444 its reverse (44430401102), we get a palindrome (64540804546).

The spelling of 20110403444 in words is "twenty billion, one hundred ten million, four hundred three thousand, four hundred forty-four".