1403402105424 has 160 divisors (see below), whose sum is σ = 4031030997504. Its totient is φ = 417107991040.

The previous prime is 1403402105423. The next prime is 1403402105551. The reversal of 1403402105424 is 4245012043041.

It is a junction number, because it is equal to n+sod(n) for n = 1403402105391 and 1403402105400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403402105423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106416559 + ... + 106429745.

Almost surely, 2^{1403402105424} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1403402105424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2015515498752).

1403402105424 is an abundant number, since it is smaller than the sum of its proper divisors (2627628892080).

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

1403402105424 is a wasteful number, since it uses less digits than its factorization.

1403402105424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17065 (or 17059 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 1403402105424 its reverse (4245012043041), we get a palindrome (5648414148465).

The spelling of 1403402105424 in words is "one trillion, four hundred three billion, four hundred two million, one hundred five thousand, four hundred twenty-four".