128803732 has 24 divisors (see below), whose sum is σ = 233793000. Its totient is φ = 62017536.

The previous prime is 128803723. The next prime is 128803739. The reversal of 128803732 is 237308821.

It can be written as a sum of positive squares in 4 ways, for example, as 39765636 + 89038096 = 6306^2 + 9436^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128803739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50848 + ... + 53320.

It is an arithmetic number, because the mean of its divisors is an integer number (9741375).

Almost surely, 2^128803732 is an apocalyptic number.

It is an amenable number.

128803732 is a deficient number, since it is larger than the sum of its proper divisors (104989268).

128803732 is a wasteful number, since it uses less digits than its factorization.

128803732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2955 (or 2953 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 128803732 is about 11349.1731857435. The cubic root of 128803732 is about 505.0210519604.

The spelling of 128803732 in words is "one hundred twenty-eight million, eight hundred three thousand, seven hundred thirty-two".