128347340 has 24 divisors (see below), whose sum is σ = 294032592. Its totient is φ = 46671680.

The previous prime is 128347327. The next prime is 128347363. The reversal of 128347340 is 43743821.

It is a junction number, because it is equal to n+sod(n) for n = 128347297 and 128347306.

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, 291479 + ... + 291918.

It is an arithmetic number, because the mean of its divisors is an integer number (12251358).

Almost surely, 2^128347340 is an apocalyptic number.

128347340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128347340 is an abundant number, since it is smaller than the sum of its proper divisors (165685252).

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

128347340 is a wasteful number, since it uses less digits than its factorization.

128347340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583417 (or 583415 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 128347340 is about 11329.0485037359. The cubic root of 128347340 is about 504.4238634280.

The spelling of 128347340 in words is "one hundred twenty-eight million, three hundred forty-seven thousand, three hundred forty".