385885441 has 2 divisors, whose sum is σ = 385885442. Its totient is φ = 385885440.

The previous prime is 385885439. The next prime is 385885457. The reversal of 385885441 is 144588583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 280227600 + 105657841 = 16740^2 + 10279^2 .

It is an emirp because it is prime and its reverse (144588583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 385885441 - 2¹ = 385885439 is a prime.

Together with 385885439, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 385885391 and 385885400.

It is not a weakly prime, because it can be changed into another prime (385885541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192942720 + 192942721.

It is an arithmetic number, because the mean of its divisors is an integer number (192942721).

Almost surely, 2^385885441 is an apocalyptic number.

It is an amenable number.

385885441 is a deficient number, since it is larger than the sum of its proper divisors (1).

385885441 is an equidigital number, since it uses as much as digits as its factorization.

385885441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 614400, while the sum is 46.

The square root of 385885441 is about 19643.9670382538. The cubic root of 385885441 is about 728.0359043446.

The spelling of 385885441 in words is "three hundred eighty-five million, eight hundred eighty-five thousand, four hundred forty-one".