128413734 has 8 divisors (see below), whose sum is σ = 256827480. Its totient is φ = 42804576.

The previous prime is 128413709. The next prime is 128413771. The reversal of 128413734 is 437314821.

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

128413734 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 128413695 and 128413704.

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, 10701139 + ... + 10701150.

It is an arithmetic number, because the mean of its divisors is an integer number (32103435).

Almost surely, 2^128413734 is an apocalyptic number.

128413734 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128413734 is a wasteful number, since it uses less digits than its factorization.

128413734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21402294.

The product of its digits is 16128, while the sum is 33.

The square root of 128413734 is about 11331.9783797888. The cubic root of 128413734 is about 504.5108278189.

The spelling of 128413734 in words is "one hundred twenty-eight million, four hundred thirteen thousand, seven hundred thirty-four".