128340334 has 8 divisors (see below), whose sum is σ = 192956400. Its totient is φ = 64021536.

The previous prime is 128340323. The next prime is 128340343. The reversal of 128340334 is 433043821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73234 + ... + 74965.

It is an arithmetic number, because the mean of its divisors is an integer number (24119550).

Almost surely, 2^128340334 is an apocalyptic number.

128340334 is a deficient number, since it is larger than the sum of its proper divisors (64616066).

128340334 is a wasteful number, since it uses less digits than its factorization.

128340334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148634.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 128340334 is about 11328.7392943787. The cubic root of 128340334 is about 504.4146850587.

The spelling of 128340334 in words is "one hundred twenty-eight million, three hundred forty thousand, three hundred thirty-four".