340243443 has 16 divisors (see below), whose sum is σ = 504668160. Its totient is φ = 226557288.

The previous prime is 340243433. The next prime is 340243451. The reversal of 340243443 is 344342043.

It is not a de Polignac number, because 340243443 - 2¹⁷ = 340112371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (340243433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16846 + ... + 31052.

It is an arithmetic number, because the mean of its divisors is an integer number (31541760).

Almost surely, 2^340243443 is an apocalyptic number.

340243443 is a deficient number, since it is larger than the sum of its proper divisors (164424717).

340243443 is a wasteful number, since it uses less digits than its factorization.

340243443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15103 (or 15097 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

The square root of 340243443 is about 18445.6890085461. The cubic root of 340243443 is about 698.1197451667.

Adding to 340243443 its reverse (344342043), we get a palindrome (684585486).

The spelling of 340243443 in words is "three hundred forty million, two hundred forty-three thousand, four hundred forty-three".