1404440423860 has 48 divisors (see below), whose sum is σ = 3124311054480. Its totient is φ = 528477143040.

The previous prime is 1404440423753. The next prime is 1404440423861. The reversal of 1404440423860 is 683240444041.

It can be written as a sum of positive squares in 8 ways, for example, as 93571139236 + 1310869284624 = 305894^2 + 1144932^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404440423861) by changing a digit.

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, 278421 + ... + 1698940.

It is an arithmetic number, because the mean of its divisors is an integer number (65089813635).

Almost surely, 2^{1404440423860} is an apocalyptic number.

1404440423860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1404440423860 is an abundant number, since it is smaller than the sum of its proper divisors (1719870630620).

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

1404440423860 is a wasteful number, since it uses less digits than its factorization.

1404440423860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979476 (or 1979474 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 40.

The spelling of 1404440423860 in words is "one trillion, four hundred four billion, four hundred forty million, four hundred twenty-three thousand, eight hundred sixty".