340066728 has 64 divisors (see below), whose sum is σ = 946468800. Its totient is φ = 113135040.

The previous prime is 340066721. The next prime is 340066729. The reversal of 340066728 is 827660043.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 340066692 and 340066701.

It is not an unprimeable number, because it can be changed into a prime (340066721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139843 + ... + 142253.

It is an arithmetic number, because the mean of its divisors is an integer number (14788575).

Almost surely, 2^340066728 is an apocalyptic number.

It is an amenable number.

340066728 is an abundant number, since it is smaller than the sum of its proper divisors (606402072).

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

340066728 is a wasteful number, since it uses less digits than its factorization.

340066728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3079 (or 3069 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 340066728 is about 18440.8982427646. The cubic root of 340066728 is about 697.9988615291.

The spelling of 340066728 in words is "three hundred forty million, sixty-six thousand, seven hundred twenty-eight".