128326944 has 48 divisors (see below), whose sum is σ = 337442112. Its totient is φ = 42701568.

The previous prime is 128326937. The next prime is 128326973. The reversal of 128326944 is 449623821.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104317 + ... + 105539.

It is an arithmetic number, because the mean of its divisors is an integer number (7030044).

Almost surely, 2^128326944 is an apocalyptic number.

It is an amenable number.

128326944 is an abundant number, since it is smaller than the sum of its proper divisors (209115168).

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

128326944 is a wasteful number, since it uses less digits than its factorization.

128326944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329 (or 2321 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 128326944 is about 11328.1483041140. The cubic root of 128326944 is about 504.3971422558.

The spelling of 128326944 in words is "one hundred twenty-eight million, three hundred twenty-six thousand, nine hundred forty-four".