340336023 has 4 divisors (see below), whose sum is σ = 453781368. Its totient is φ = 226890680.

The previous prime is 340335973. The next prime is 340336033. The reversal of 340336023 is 320633043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320633043 = 3 ⋅106877681.

It is a cyclic number.

It is not a de Polignac number, because 340336023 - 2²¹ = 338238871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 340335984 and 340336002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340336033) 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, 56722668 + ... + 56722673.

It is an arithmetic number, because the mean of its divisors is an integer number (113445342).

Almost surely, 2^340336023 is an apocalyptic number.

340336023 is a deficient number, since it is larger than the sum of its proper divisors (113445345).

340336023 is a wasteful number, since it uses less digits than its factorization.

340336023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113445344.

The product of its (nonzero) digits is 3888, while the sum is 24.

The square root of 340336023 is about 18448.1983673203. The cubic root of 340336023 is about 698.1830587207.

Adding to 340336023 its reverse (320633043), we get a palindrome (660969066).

The spelling of 340336023 in words is "three hundred forty million, three hundred thirty-six thousand, twenty-three".