128460432 has 40 divisors (see below), whose sum is σ = 351379296. Its totient is φ = 40301056.

The previous prime is 128460427. The next prime is 128460433. The reversal of 128460432 is 234064821.

It is a self number, because there is not a number n which added to its sum of digits gives 128460432.

It is not an unprimeable number, because it can be changed into a prime (128460433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77898 + ... + 79529.

Almost surely, 2^128460432 is an apocalyptic number.

128460432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128460432 is an abundant number, since it is smaller than the sum of its proper divisors (222918864).

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

128460432 is a wasteful number, since it uses less digits than its factorization.

128460432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157455 (or 157449 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 128460432 is about 11334.0386447197. The cubic root of 128460432 is about 504.5719759808.

It can be divided in two parts, 1284 and 60432, that added together give a palindrome (61716).

The spelling of 128460432 in words is "one hundred twenty-eight million, four hundred sixty thousand, four hundred thirty-two".