128465344 has 28 divisors (see below), whose sum is σ = 291342064. Its totient is φ = 55056384.

The previous prime is 128465339. The next prime is 128465357. The reversal of 128465344 is 443564821.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

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, 142929 + ... + 143824.

Almost surely, 2^128465344 is an apocalyptic number.

128465344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

128465344 is an abundant number, since it is smaller than the sum of its proper divisors (162876720).

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

128465344 is an equidigital number, since it uses as much as digits as its factorization.

128465344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286772 (or 286762 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

The square root of 128465344 is about 11334.2553350452. The cubic root of 128465344 is about 504.5784070816.

The spelling of 128465344 in words is "one hundred twenty-eight million, four hundred sixty-five thousand, three hundred forty-four".