4128944452 has 48 divisors (see below), whose sum is σ = 7733658240. Its totient is φ = 1927811424.

The previous prime is 4128944399. The next prime is 4128944471. The reversal of 4128944452 is 2544498214.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 4128944399 and 4128944408.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2091738 + ... + 2093710.

It is an arithmetic number, because the mean of its divisors is an integer number (161117880).

Almost surely, 2^4128944452 is an apocalyptic number.

It is an amenable number.

4128944452 is a deficient number, since it is larger than the sum of its proper divisors (3604713788).

4128944452 is a wasteful number, since it uses less digits than its factorization.

4128944452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089 (or 2041 counting only the distinct ones).

The product of its digits is 368640, while the sum is 43.

The square root of 4128944452 is about 64256.8630731380. The cubic root of 4128944452 is about 1604.2781926590.

The spelling of 4128944452 in words is "four billion, one hundred twenty-eight million, nine hundred forty-four thousand, four hundred fifty-two".