1404323225440 has 96 divisors (see below), whose sum is σ = 3381114199680. Its totient is φ = 551085410304.

The previous prime is 1404323225411. The next prime is 1404323225477. The reversal of 1404323225440 is 445223234041.

It is a junction number, because it is equal to n+sod(n) for n = 1404323225396 and 1404323225405.

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 15 ways as a sum of consecutive naturals, for example, 1630654 + ... + 2338306.

It is an arithmetic number, because the mean of its divisors is an integer number (35219939580).

Almost surely, 2^{1404323225440} is an apocalyptic number.

1404323225440 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 1404323225440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1690557099840).

1404323225440 is an abundant number, since it is smaller than the sum of its proper divisors (1976790974240).

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

1404323225440 is a wasteful number, since it uses less digits than its factorization.

1404323225440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707904 (or 707896 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 1404323225440 its reverse (445223234041), we get a palindrome (1849546459481).

The spelling of 1404323225440 in words is "one trillion, four hundred four billion, three hundred twenty-three million, two hundred twenty-five thousand, four hundred forty".