385448039 has 4 divisors (see below), whose sum is σ = 387601560. Its totient is φ = 383294520.

The previous prime is 385448023. The next prime is 385448057. The reversal of 385448039 is 930844583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930844583 = 101 ⋅9216283.

It is a cyclic number.

It is not a de Polignac number, because 385448039 - 2⁴ = 385448023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385448069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1076492 + ... + 1076849.

It is an arithmetic number, because the mean of its divisors is an integer number (96900390).

Almost surely, 2^385448039 is an apocalyptic number.

385448039 is a deficient number, since it is larger than the sum of its proper divisors (2153521).

385448039 is a wasteful number, since it uses less digits than its factorization.

385448039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153520.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 385448039 is about 19632.8306415555. The cubic root of 385448039 is about 727.7607235770.

The spelling of 385448039 in words is "three hundred eighty-five million, four hundred forty-eight thousand, thirty-nine".