128276936 has 16 divisors (see below), whose sum is σ = 242276940. Its totient is φ = 63669760.

The previous prime is 128276933. The next prime is 128276989. The reversal of 128276936 is 639672821.

It can be written as a sum of positive squares in 2 ways, for example, as 127554436 + 722500 = 11294^2 + 850^2 .

It is not an unprimeable number, because it can be changed into a prime (128276933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57425 + ... + 59616.

Almost surely, 2^128276936 is an apocalyptic number.

It is an amenable number.

128276936 is a deficient number, since it is larger than the sum of its proper divisors (114000004).

128276936 is a wasteful number, since it uses less digits than its factorization.

128276936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117184 (or 117180 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 128276936 is about 11325.9408439211. The cubic root of 128276936 is about 504.3316138777.

The spelling of 128276936 in words is "one hundred twenty-eight million, two hundred seventy-six thousand, nine hundred thirty-six".