235640339 has 4 divisors (see below), whose sum is σ = 257062200. Its totient is φ = 214218480.

The previous prime is 235640323. The next prime is 235640347. The reversal of 235640339 is 933046532.

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 235640339 - 2⁴ = 235640323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 235640299 and 235640308.

It is not an unprimeable number, because it can be changed into a prime (235640389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10710914 + ... + 10710935.

It is an arithmetic number, because the mean of its divisors is an integer number (64265550).

Almost surely, 2^235640339 is an apocalyptic number.

235640339 is a deficient number, since it is larger than the sum of its proper divisors (21421861).

235640339 is a wasteful number, since it uses less digits than its factorization.

235640339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21421860.

The product of its (nonzero) digits is 58320, while the sum is 35.

The square root of 235640339 is about 15350.5810639207. The cubic root of 235640339 is about 617.6605724680.

The spelling of 235640339 in words is "two hundred thirty-five million, six hundred forty thousand, three hundred thirty-nine".