340347957 has 8 divisors (see below), whose sum is σ = 454399776. Its totient is φ = 226597392.

The previous prime is 340347913. The next prime is 340347983. The reversal of 340347957 is 759743043.

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

It is not a de Polignac number, because 340347957 - 2¹¹ = 340345909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340347907) 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, 72663 + ... + 77204.

It is an arithmetic number, because the mean of its divisors is an integer number (56799972).

Almost surely, 2^340347957 is an apocalyptic number.

It is an amenable number.

340347957 is a deficient number, since it is larger than the sum of its proper divisors (114051819).

340347957 is a wasteful number, since it uses less digits than its factorization.

340347957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150627.

The product of its (nonzero) digits is 317520, while the sum is 42.

The square root of 340347957 is about 18448.5218107034. The cubic root of 340347957 is about 698.1912193019.

It can be divided in two parts, 3403 and 47957, that added together give a triangular number (51360 = T₃₂₀).

The spelling of 340347957 in words is "three hundred forty million, three hundred forty-seven thousand, nine hundred fifty-seven".