128038624 has 24 divisors (see below), whose sum is σ = 288087408. Its totient is φ = 54873600.

The previous prime is 128038583. The next prime is 128038627. The reversal of 128038624 is 426830821.

It is a self number, because there is not a number n which added to its sum of digits gives 128038624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128038627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285577 + ... + 286024.

It is an arithmetic number, because the mean of its divisors is an integer number (12003642).

Almost surely, 2^128038624 is an apocalyptic number.

128038624 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

128038624 is an abundant number, since it is smaller than the sum of its proper divisors (160048784).

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

128038624 is an equidigital number, since it uses as much as digits as its factorization.

128038624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571618 (or 571610 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 128038624 is about 11315.4153260055. The cubic root of 128038624 is about 504.0191056837.

The spelling of 128038624 in words is "one hundred twenty-eight million, thirty-eight thousand, six hundred twenty-four".