235440643 has 2 divisors, whose sum is σ = 235440644. Its totient is φ = 235440642.

The previous prime is 235440641. The next prime is 235440649. The reversal of 235440643 is 346044532.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 235440643 - 2¹ = 235440641 is a prime.

Together with 235440641, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (235440641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117720321 + 117720322.

It is an arithmetic number, because the mean of its divisors is an integer number (117720322).

Almost surely, 2^235440643 is an apocalyptic number.

235440643 is a deficient number, since it is larger than the sum of its proper divisors (1).

235440643 is an equidigital number, since it uses as much as digits as its factorization.

235440643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 235440643 is about 15344.0751757804. The cubic root of 235440643 is about 617.4860420717.

The spelling of 235440643 in words is "two hundred thirty-five million, four hundred forty thousand, six hundred forty-three".