1404204345440 has 48 divisors (see below), whose sum is σ = 3572619907248. Its totient is φ = 518475449856.

The previous prime is 1404204345437. The next prime is 1404204345443. The reversal of 1404204345440 is 445434024041.

It is an interprime number because it is at equal distance from previous prime (1404204345437) and next prime (1404204345443).

It is a self number, because there is not a number n which added to its sum of digits gives 1404204345440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404204345443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337547042 + ... + 337551201.

It is an arithmetic number, because the mean of its divisors is an integer number (74429581401).

Almost surely, 2^{1404204345440} is an apocalyptic number.

1404204345440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1404204345440 is an abundant number, since it is smaller than the sum of its proper divisors (2168415561808).

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

1404204345440 is a wasteful number, since it uses less digits than its factorization.

1404204345440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675098271 (or 675098263 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 35.

Adding to 1404204345440 its reverse (445434024041), we get a palindrome (1849638369481).

The spelling of 1404204345440 in words is "one trillion, four hundred four billion, two hundred four million, three hundred forty-five thousand, four hundred forty".