4421155628 has 24 divisors (see below), whose sum is σ = 7822869600. Its totient is φ = 2186085888.

The previous prime is 4421155603. The next prime is 4421155637. The reversal of 4421155628 is 8265511244.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4421155591 and 4421155600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601238 + ... + 608546.

It is an arithmetic number, because the mean of its divisors is an integer number (325952900).

Almost surely, 2^4421155628 is an apocalyptic number.

It is an amenable number.

4421155628 is a deficient number, since it is larger than the sum of its proper divisors (3401713972).

4421155628 is a wasteful number, since it uses less digits than its factorization.

4421155628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8969 (or 8967 counting only the distinct ones).

The product of its digits is 76800, while the sum is 38.

The square root of 4421155628 is about 66491.7711299677. The cubic root of 4421155628 is about 1641.2645942297.

The spelling of 4421155628 in words is "four billion, four hundred twenty-one million, one hundred fifty-five thousand, six hundred twenty-eight".