340023423 has 8 divisors (see below), whose sum is σ = 457602048. Its totient is φ = 224563544.

The previous prime is 340023413. The next prime is 340023433. The reversal of 340023423 is 324320043.

It is an interprime number because it is at equal distance from previous prime (340023413) and next prime (340023433).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340023423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340023423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340023413) 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, 529311 + ... + 529952.

It is an arithmetic number, because the mean of its divisors is an integer number (57200256).

Almost surely, 2^340023423 is an apocalyptic number.

340023423 is a deficient number, since it is larger than the sum of its proper divisors (117578625).

340023423 is a wasteful number, since it uses less digits than its factorization.

340023423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059373.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 340023423 is about 18439.7240489114. The cubic root of 340023423 is about 697.9692319286.

Adding to 340023423 its reverse (324320043), we get a palindrome (664343466).

The spelling of 340023423 in words is "three hundred forty million, twenty-three thousand, four hundred twenty-three".