340006728 has 32 divisors (see below), whose sum is σ = 858785760. Its totient is φ = 112166400.

The previous prime is 340006721. The next prime is 340006739. The reversal of 340006728 is 827600043.

340006728 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 340006695 and 340006704.

It is not an unprimeable number, because it can be changed into a prime (340006721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70698 + ... + 75353.

It is an arithmetic number, because the mean of its divisors is an integer number (26837055).

Almost surely, 2^340006728 is an apocalyptic number.

It is an amenable number.

340006728 is an abundant number, since it is smaller than the sum of its proper divisors (518779032).

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

340006728 is a wasteful number, since it uses less digits than its factorization.

340006728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146157 (or 146153 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 340006728 is about 18439.2713521983. The cubic root of 340006728 is about 697.9578084146.

The spelling of 340006728 in words is "three hundred forty million, six thousand, seven hundred twenty-eight".