4469128720 has 40 divisors (see below), whose sum is σ = 11875114944. Its totient is φ = 1532272512.

The previous prime is 4469128711. The next prime is 4469128771. The reversal of 4469128720 is 278219644.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-4 number, since 4×4469128720⁴ (a number of 40 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3989734 + ... + 3990853.

Almost surely, 2^4469128720 is an apocalyptic number.

4469128720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4469128720 is an abundant number, since it is smaller than the sum of its proper divisors (7405986224).

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

4469128720 is a wasteful number, since it uses less digits than its factorization.

4469128720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7980607 (or 7980601 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 4469128720 is about 66851.5423905836. The cubic root of 4469128720 is about 1647.1795980205.

The spelling of 4469128720 in words is "four billion, four hundred sixty-nine million, one hundred twenty-eight thousand, seven hundred twenty".