385194439 has 6 divisors (see below), whose sum is σ = 448083384. Its totient is φ = 330166620.

The previous prime is 385194419. The next prime is 385194463. The reversal of 385194439 is 934491583.

It is a happy number.

It is not a de Polignac number, because 385194439 - 2¹³ = 385186247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385194419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3930507 + ... + 3930604.

It is an arithmetic number, because the mean of its divisors is an integer number (74680564).

Almost surely, 2^385194439 is an apocalyptic number.

385194439 is a deficient number, since it is larger than the sum of its proper divisors (62888945).

385194439 is an equidigital number, since it uses as much as digits as its factorization.

385194439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7861125 (or 7861118 counting only the distinct ones).

The product of its digits is 466560, while the sum is 46.

The square root of 385194439 is about 19626.3710094352. The cubic root of 385194439 is about 727.6010819895.

The spelling of 385194439 in words is "three hundred eighty-five million, one hundred ninety-four thousand, four hundred thirty-nine".