128468836 has 12 divisors (see below), whose sum is σ = 232072960. Its totient is φ = 62162280.

The previous prime is 128468833. The next prime is 128468839. The reversal of 128468836 is 638864821.

It is an interprime number because it is at equal distance from previous prime (128468833) and next prime (128468839).

It is not an unprimeable number, because it can be changed into a prime (128468833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517896 + ... + 518143.

Almost surely, 2^128468836 is an apocalyptic number.

It is an amenable number.

128468836 is a deficient number, since it is larger than the sum of its proper divisors (103604124).

128468836 is a wasteful number, since it uses less digits than its factorization.

128468836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036074 (or 1036072 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 128468836 is about 11334.4093802897. The cubic root of 128468836 is about 504.5829789289.

The spelling of 128468836 in words is "one hundred twenty-eight million, four hundred sixty-eight thousand, eight hundred thirty-six".