343040023 has 4 divisors (see below), whose sum is σ = 344261088. Its totient is φ = 341818960.

The previous prime is 343040021. The next prime is 343040029. The reversal of 343040023 is 320040343.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 343040023 - 2¹ = 343040021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343040021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610111 + ... + 610672.

It is an arithmetic number, because the mean of its divisors is an integer number (86065272).

Almost surely, 2^343040023 is an apocalyptic number.

343040023 is a deficient number, since it is larger than the sum of its proper divisors (1221065).

343040023 is a wasteful number, since it uses less digits than its factorization.

343040023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221064.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 343040023 is about 18521.3396653698. The cubic root of 343040023 is about 700.0272254717.

Adding to 343040023 its reverse (320040343), we get a palindrome (663080366).

The spelling of 343040023 in words is "three hundred forty-three million, forty thousand, twenty-three".