128280342 has 16 divisors (see below), whose sum is σ = 256681152. Its totient is φ = 42740040.

The previous prime is 128280331. The next prime is 128280353. The reversal of 128280342 is 243082821.

It is an interprime number because it is at equal distance from previous prime (128280331) and next prime (128280353).

It is a super-2 number, since 2×128280342² = 32911692287273928, which contains 22 as substring.

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, 14917 + ... + 21887.

It is an arithmetic number, because the mean of its divisors is an integer number (16042572).

Almost surely, 2^128280342 is an apocalyptic number.

128280342 is an abundant number, since it is smaller than the sum of its proper divisors (128400810).

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

128280342 is a wasteful number, since it uses less digits than its factorization.

128280342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10043.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 128280342 is about 11326.0912057073. The cubic root of 128280342 is about 504.3360774971.

The spelling of 128280342 in words is "one hundred twenty-eight million, two hundred eighty thousand, three hundred forty-two".