10440430020 has 72 divisors (see below), whose sum is σ = 33046243776. Its totient is φ = 2663065152.

The previous prime is 10440430001. The next prime is 10440430069. The reversal of 10440430020 is 2003404401.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10440429975 and 10440430002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1256782 + ... + 1265061.

It is an arithmetic number, because the mean of its divisors is an integer number (458975608).

Almost surely, 2^10440430020 is an apocalyptic number.

10440430020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10440430020 is an abundant number, since it is smaller than the sum of its proper divisors (22605813756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10440430020 is a wasteful number, since it uses less digits than its factorization.

10440430020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521881 (or 2521876 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 10440430020 its reverse (2003404401), we get a palindrome (12443834421).

The spelling of 10440430020 in words is "ten billion, four hundred forty million, four hundred thirty thousand, twenty".