14403312020 has 24 divisors (see below), whose sum is σ = 30283831368. Its totient is φ = 5754300800.

The previous prime is 14403311971. The next prime is 14403312127. The reversal of 14403312020 is 2021330441.

It can be written as a sum of positive squares in 4 ways, for example, as 761539216 + 13641772804 = 27596^2 + 116798^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 14403311983 and 14403312001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422171 + ... + 455010.

It is an arithmetic number, because the mean of its divisors is an integer number (1261826307).

Almost surely, 2^14403312020 is an apocalyptic number.

14403312020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14403312020 is an abundant number, since it is smaller than the sum of its proper divisors (15880519348).

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

14403312020 is a wasteful number, since it uses less digits than its factorization.

14403312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878011 (or 878009 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 14403312020 its reverse (2021330441), we get a palindrome (16424642461).

The spelling of 14403312020 in words is "fourteen billion, four hundred three million, three hundred twelve thousand, twenty".