340243043 has 8 divisors (see below), whose sum is σ = 392700000. Its totient is φ = 288748800.

The previous prime is 340243031. The next prime is 340243061. The reversal of 340243043 is 340342043.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 340243043 - 2²⁴ = 323465827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340243063) 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, 239918 + ... + 241331.

It is an arithmetic number, because the mean of its divisors is an integer number (49087500).

Almost surely, 2^340243043 is an apocalyptic number.

340243043 is a deficient number, since it is larger than the sum of its proper divisors (52456957).

340243043 is a wasteful number, since it uses less digits than its factorization.

340243043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481357.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 340243043 is about 18445.6781659011. The cubic root of 340243043 is about 698.1194715900.

Adding to 340243043 its reverse (340342043), we get a palindrome (680585086).

The spelling of 340243043 in words is "three hundred forty million, two hundred forty-three thousand, forty-three".