385439398 has 4 divisors (see below), whose sum is σ = 578159100. Its totient is φ = 192719698.

The previous prime is 385439381. The next prime is 385439407. The reversal of 385439398 is 893934583.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96359848 + ... + 96359851.

It is an arithmetic number, because the mean of its divisors is an integer number (144539775).

Almost surely, 2^385439398 is an apocalyptic number.

385439398 is a deficient number, since it is larger than the sum of its proper divisors (192719702).

385439398 is a wasteful number, since it uses less digits than its factorization.

385439398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192719701.

The product of its digits is 2799360, while the sum is 52.

The square root of 385439398 is about 19632.6105752648. The cubic root of 385439398 is about 727.7552852068.

The spelling of 385439398 in words is "three hundred eighty-five million, four hundred thirty-nine thousand, three hundred ninety-eight".