140223404031440 has 80 divisors (see below), whose sum is σ = 340699160786688. Its totient is φ = 53619320391168.

The previous prime is 140223404031407. The next prime is 140223404031577. The reversal of 140223404031440 is 44130404322041.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 140223404031397 and 140223404031406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433483187 + ... + 433806546.

Almost surely, 2^{140223404031440} is an apocalyptic number.

140223404031440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140223404031440 is an abundant number, since it is smaller than the sum of its proper divisors (200475756755248).

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

140223404031440 is a wasteful number, since it uses less digits than its factorization.

140223404031440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867289836 (or 867289830 counting only the distinct ones).

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

Adding to 140223404031440 its reverse (44130404322041), we get a palindrome (184353808353481).

The spelling of 140223404031440 in words is "one hundred forty trillion, two hundred twenty-three billion, four hundred four million, thirty-one thousand, four hundred forty".