235430389 has 2 divisors, whose sum is σ = 235430390. Its totient is φ = 235430388.

The previous prime is 235430383. The next prime is 235430401. The reversal of 235430389 is 983034532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234396100 + 1034289 = 15310^2 + 1017^2 .

It is a cyclic number.

It is not a de Polignac number, because 235430389 - 2¹³ = 235422197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235430383) 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 as a sum of consecutive naturals, namely, 117715194 + 117715195.

It is an arithmetic number, because the mean of its divisors is an integer number (117715195).

Almost surely, 2^235430389 is an apocalyptic number.

It is an amenable number.

235430389 is a deficient number, since it is larger than the sum of its proper divisors (1).

235430389 is an equidigital number, since it uses as much as digits as its factorization.

235430389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 235430389 is about 15343.7410366573. The cubic root of 235430389 is about 617.4770776129.

The spelling of 235430389 in words is "two hundred thirty-five million, four hundred thirty thousand, three hundred eighty-nine".