128314380 has 96 divisors (see below), whose sum is σ = 371508480. Its totient is φ = 33073920.

The previous prime is 128314331. The next prime is 128314393. The reversal of 128314380 is 83413821.

It is a super-2 number, since 2×128314380² = 32929160229568800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236910 + ... + 237450.

It is an arithmetic number, because the mean of its divisors is an integer number (3869880).

Almost surely, 2^128314380 is an apocalyptic number.

128314380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128314380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185754240).

128314380 is an abundant number, since it is smaller than the sum of its proper divisors (243194100).

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

128314380 is a wasteful number, since it uses less digits than its factorization.

128314380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 128314380 is about 11327.5937427152. The cubic root of 128314380 is about 504.3806805206.

The spelling of 128314380 in words is "one hundred twenty-eight million, three hundred fourteen thousand, three hundred eighty".