128536476 has 48 divisors (see below), whose sum is σ = 311216640. Its totient is φ = 41258880.

The previous prime is 128536469. The next prime is 128536477. The reversal of 128536476 is 674635821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128536477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37215 + ... + 40521.

It is an arithmetic number, because the mean of its divisors is an integer number (6483680).

Almost surely, 2^128536476 is an apocalyptic number.

It is an amenable number.

128536476 is an abundant number, since it is smaller than the sum of its proper divisors (182680164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128536476 is a wasteful number, since it uses less digits than its factorization.

128536476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3434 (or 3432 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 128536476 is about 11337.3928219851. The cubic root of 128536476 is about 504.6715192204.

The spelling of 128536476 in words is "one hundred twenty-eight million, five hundred thirty-six thousand, four hundred seventy-six".