128413332 has 36 divisors (see below), whose sum is σ = 325220896. Its totient is φ = 42722640.

The previous prime is 128413309. The next prime is 128413333. The reversal of 128413332 is 233314821.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 128413296 and 128413305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128413333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17433 + ... + 23679.

Almost surely, 2^128413332 is an apocalyptic number.

128413332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128413332 is an abundant number, since it is smaller than the sum of its proper divisors (196807564).

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

128413332 is a wasteful number, since it uses less digits than its factorization.

128413332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6828 (or 6823 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 128413332 is about 11331.9606423602. The cubic root of 128413332 is about 504.5103013603.

The spelling of 128413332 in words is "one hundred twenty-eight million, four hundred thirteen thousand, three hundred thirty-two".