128301240 has 64 divisors (see below), whose sum is σ = 385689600. Its totient is φ = 34143872.

The previous prime is 128301233. The next prime is 128301241. The reversal of 128301240 is 42103821.

It is a super-2 number, since 2×128301240² = 32922416371075200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128301241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88441 + ... + 89879.

It is an arithmetic number, because the mean of its divisors is an integer number (6026400).

Almost surely, 2^128301240 is an apocalyptic number.

128301240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128301240 is an abundant number, since it is smaller than the sum of its proper divisors (257388360).

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

128301240 is a wasteful number, since it uses less digits than its factorization.

128301240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196 (or 2192 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 128301240 is about 11327.0137282516. The cubic root of 128301240 is about 504.3634629430.

The spelling of 128301240 in words is "one hundred twenty-eight million, three hundred one thousand, two hundred forty".