1040221144928 has 48 divisors (see below), whose sum is σ = 2463681669120. Its totient is φ = 422345425536.

The previous prime is 1040221144927. The next prime is 1040221144961. The reversal of 1040221144928 is 8294411220401.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 1040221144891 and 1040221144900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040221144927) 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, 122202176 + ... + 122210687.

It is an arithmetic number, because the mean of its divisors is an integer number (51326701440).

Almost surely, 2^{1040221144928} is an apocalyptic number.

It is an amenable number.

1040221144928 is an abundant number, since it is smaller than the sum of its proper divisors (1423460524192).

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

1040221144928 is a wasteful number, since it uses less digits than its factorization.

1040221144928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244412899 (or 244412891 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The spelling of 1040221144928 in words is "one trillion, forty billion, two hundred twenty-one million, one hundred forty-four thousand, nine hundred twenty-eight".