4220309928 has 32 divisors (see below), whose sum is σ = 11009505600. Its totient is φ = 1345605888.

The previous prime is 4220309909. The next prime is 4220309953. The reversal of 4220309928 is 8299030224.

It is a happy number.

It is a super-2 number, since 2×4220309928² = 35622031776750730368, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3822193 + ... + 3823296.

It is an arithmetic number, because the mean of its divisors is an integer number (344047050).

Almost surely, 2^4220309928 is an apocalyptic number.

It is an amenable number.

4220309928 is an abundant number, since it is smaller than the sum of its proper divisors (6789195672).

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

4220309928 is a wasteful number, since it uses less digits than its factorization.

4220309928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7645521 (or 7645517 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 4220309928 is about 64963.9125053287. The cubic root of 4220309928 is about 1616.0251493080.

The spelling of 4220309928 in words is "four billion, two hundred twenty million, three hundred nine thousand, nine hundred twenty-eight".