4099860728 has 8 divisors (see below), whose sum is σ = 7687238880. Its totient is φ = 2049930360.

The previous prime is 4099860683. The next prime is 4099860769. The reversal of 4099860728 is 8270689904.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 4099860728.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256241288 + ... + 256241303.

It is an arithmetic number, because the mean of its divisors is an integer number (960904860).

Almost surely, 2^4099860728 is an apocalyptic number.

It is an amenable number.

4099860728 is a deficient number, since it is larger than the sum of its proper divisors (3587378152).

4099860728 is a wasteful number, since it uses less digits than its factorization.

4099860728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512482597 (or 512482593 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 53.

The square root of 4099860728 is about 64030.1548334845. The cubic root of 4099860728 is about 1600.5025410996.

Subtracting from 4099860728 its product of nonzero digits (1741824), we obtain a palindrome (4098118904).

The spelling of 4099860728 in words is "four billion, ninety-nine million, eight hundred sixty thousand, seven hundred twenty-eight".