4221440753028 has 24 divisors (see below), whose sum is σ = 9906965009088. Its totient is φ = 1399013119776.

The previous prime is 4221440753027. The next prime is 4221440753029. The reversal of 4221440753028 is 8203570441224.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4221440753027) and next prime (4221440753029).

It is not an unprimeable number, because it can be changed into a prime (4221440753027) 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, 1016722576 + ... + 1016726727.

It is an arithmetic number, because the mean of its divisors is an integer number (412790208712).

Almost surely, 2^{4221440753028} is an apocalyptic number.

It is an amenable number.

4221440753028 is an abundant number, since it is smaller than the sum of its proper divisors (5685524256060).

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

4221440753028 is a wasteful number, since it uses less digits than its factorization.

4221440753028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033449483 (or 2033449481 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 42.

The spelling of 4221440753028 in words is "four trillion, two hundred twenty-one billion, four hundred forty million, seven hundred fifty-three thousand, twenty-eight".