385386433 has 2 divisors, whose sum is σ = 385386434. Its totient is φ = 385386432.

The previous prime is 385386409. The next prime is 385386437. The reversal of 385386433 is 334683583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 273174784 + 112211649 = 16528^2 + 10593^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385386433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 385386433.

It is not a weakly prime, because it can be changed into another prime (385386437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192693216 + 192693217.

It is an arithmetic number, because the mean of its divisors is an integer number (192693217).

Almost surely, 2^385386433 is an apocalyptic number.

It is an amenable number.

385386433 is a deficient number, since it is larger than the sum of its proper divisors (1).

385386433 is an equidigital number, since it uses as much as digits as its factorization.

385386433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 43.

The square root of 385386433 is about 19631.2616252751. The cubic root of 385386433 is about 727.7219489464.

The spelling of 385386433 in words is "three hundred eighty-five million, three hundred eighty-six thousand, four hundred thirty-three".