128652404 has 12 divisors (see below), whose sum is σ = 231226884. Its totient is φ = 62587584.

The previous prime is 128652389. The next prime is 128652451. The reversal of 128652404 is 404256821.

It can be written as a sum of positive squares in 2 ways, for example, as 103632400 + 25020004 = 10180^2 + 5002^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434489 + ... + 434784.

It is an arithmetic number, because the mean of its divisors is an integer number (19268907).

Almost surely, 2^128652404 is an apocalyptic number.

It is an amenable number.

128652404 is a deficient number, since it is larger than the sum of its proper divisors (102574480).

128652404 is a wasteful number, since it uses less digits than its factorization.

128652404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869314 (or 869312 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 128652404 is about 11342.5043090139. The cubic root of 128652404 is about 504.8231959574.

The spelling of 128652404 in words is "one hundred twenty-eight million, six hundred fifty-two thousand, four hundred four".