128338476 has 24 divisors (see below), whose sum is σ = 342236160. Its totient is φ = 36668112.

The previous prime is 128338471. The next prime is 128338489. The reversal of 128338476 is 674833821.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (128338471) 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 7 ways as a sum of consecutive naturals, for example, 763836 + ... + 764003.

It is an arithmetic number, because the mean of its divisors is an integer number (14259840).

Almost surely, 2^128338476 is an apocalyptic number.

It is an amenable number.

128338476 is an abundant number, since it is smaller than the sum of its proper divisors (213897684).

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

128338476 is a wasteful number, since it uses less digits than its factorization.

128338476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527853 (or 1527851 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 128338476 is about 11328.6572902529. The cubic root of 128338476 is about 504.4122508875.

The spelling of 128338476 in words is "one hundred twenty-eight million, three hundred thirty-eight thousand, four hundred seventy-six".