734128 has 20 divisors (see below), whose sum is σ = 1506600. Its totient is φ = 345344.

The previous prime is 734113. The next prime is 734131. The reversal of 734128 is 821437.

734128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1078 + ... + 1621.

It is an arithmetic number, because the mean of its divisors is an integer number (75330).

2⁷³⁴¹²⁸ is an apocalyptic number.

It is an amenable number.

734128 is an abundant number, since it is smaller than the sum of its proper divisors (772472).

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

734128 is a wasteful number, since it uses less digits than its factorization.

734128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724 (or 2718 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 734128 is about 856.8126983186. The cubic root of 734128 is about 90.2105359184.

The spelling of 734128 in words is "seven hundred thirty-four thousand, one hundred twenty-eight".