1040044555420 has 48 divisors (see below), whose sum is σ = 2352294691488. Its totient is φ = 383984789760.

The previous prime is 1040044555327. The next prime is 1040044555427. The reversal of 1040044555420 is 245554400401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040044555427) 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, 3120262 + ... + 3437458.

It is an arithmetic number, because the mean of its divisors is an integer number (49006139406).

Almost surely, 2^{1040044555420} is an apocalyptic number.

1040044555420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040044555420 is an abundant number, since it is smaller than the sum of its proper divisors (1312250136068).

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

1040044555420 is a wasteful number, since it uses less digits than its factorization.

1040044555420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329830 (or 329828 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 34.

Adding to 1040044555420 its reverse (245554400401), we get a palindrome (1285598955821).

The spelling of 1040044555420 in words is "one trillion, forty billion, forty-four million, five hundred fifty-five thousand, four hundred twenty".