128826372 has 12 divisors (see below), whose sum is σ = 300594896. Its totient is φ = 42942120.

The previous prime is 128826361. The next prime is 128826413. The reversal of 128826372 is 273628821.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 128826372.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5367754 + ... + 5367777.

Almost surely, 2^128826372 is an apocalyptic number.

128826372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128826372 is an abundant number, since it is smaller than the sum of its proper divisors (171768524).

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

128826372 is a wasteful number, since it uses less digits than its factorization.

128826372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10735538 (or 10735536 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 128826372 is about 11350.1705714055. The cubic root of 128826372 is about 505.0506396299.

The spelling of 128826372 in words is "one hundred twenty-eight million, eight hundred twenty-six thousand, three hundred seventy-two".