1403304144440 has 128 divisors (see below), whose sum is σ = 3499936542720. Its totient is φ = 502137792000.

The previous prime is 1403304144383. The next prime is 1403304144457. The reversal of 1403304144440 is 444414033041.

It is a junction number, because it is equal to n+sod(n) for n = 1403304144397 and 1403304144406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7146857 + ... + 7340583.

It is an arithmetic number, because the mean of its divisors is an integer number (27343254240).

Almost surely, 2^{1403304144440} is an apocalyptic number.

1403304144440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1403304144440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1749968271360).

1403304144440 is an abundant number, since it is smaller than the sum of its proper divisors (2096632398280).

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

1403304144440 is a wasteful number, since it uses less digits than its factorization.

1403304144440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194013 (or 194009 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 1403304144440 its reverse (444414033041), we get a palindrome (1847718177481).

The spelling of 1403304144440 in words is "one trillion, four hundred three billion, three hundred four million, one hundred forty-four thousand, four hundred forty".