128414448 has 30 divisors (see below), whose sum is σ = 359382504. Its totient is φ = 42804768.

The previous prime is 128414441. The next prime is 128414459. The reversal of 128414448 is 844414821.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128414441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 445740 + ... + 446027.

Almost surely, 2^128414448 is an apocalyptic number.

128414448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

128414448 is an abundant number, since it is smaller than the sum of its proper divisors (230968056).

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

128414448 is a wasteful number, since it uses less digits than its factorization.

128414448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891781 (or 891772 counting only the distinct ones).

The product of its digits is 32768, while the sum is 36.

The square root of 128414448 is about 11332.0098835114. The cubic root of 128414448 is about 504.5117628697.

The spelling of 128414448 in words is "one hundred twenty-eight million, four hundred fourteen thousand, four hundred forty-eight".