340728941 has 8 divisors (see below), whose sum is σ = 389577984. Its totient is φ = 291923280.

The previous prime is 340728889. The next prime is 340729003. The reversal of 340728941 is 149827043.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340728941 is a prime.

It is a super-2 number, since 2×340728941² = 232192422469962962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340728895 and 340728904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340728341) 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, 8231 + ... + 27371.

It is an arithmetic number, because the mean of its divisors is an integer number (48697248).

Almost surely, 2^340728941 is an apocalyptic number.

It is an amenable number.

340728941 is a deficient number, since it is larger than the sum of its proper divisors (48849043).

340728941 is a wasteful number, since it uses less digits than its factorization.

340728941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21691.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 340728941 is about 18458.8445196334. The cubic root of 340728941 is about 698.4516395441.

The spelling of 340728941 in words is "three hundred forty million, seven hundred twenty-eight thousand, nine hundred forty-one".