340070721 has 8 divisors (see below), whose sum is σ = 477292320. Its totient is φ = 214781472.

The previous prime is 340070707. The next prime is 340070729. The reversal of 340070721 is 127070043.

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

It is not a de Polignac number, because 340070721 - 2⁶ = 340070657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 340070691 and 340070700.

It is not an unprimeable number, because it can be changed into a prime (340070729) 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, 2983020 + ... + 2983133.

It is an arithmetic number, because the mean of its divisors is an integer number (59661540).

Almost surely, 2^340070721 is an apocalyptic number.

It is an amenable number.

340070721 is a deficient number, since it is larger than the sum of its proper divisors (137221599).

340070721 is a wasteful number, since it uses less digits than its factorization.

340070721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5966175.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 340070721 is about 18441.0065072382. The cubic root of 340070721 is about 698.0015934425.

The spelling of 340070721 in words is "three hundred forty million, seventy thousand, seven hundred twenty-one".