385135388 has 12 divisors (see below), whose sum is σ = 735258552. Its totient is φ = 175061520.

The previous prime is 385135369. The next prime is 385135397. The reversal of 385135388 is 883531583.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 8753077 = 385135388 / (3 + 8 + 5 + 1 + 3 + 5 + 3 + 8 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4376495 + ... + 4376582.

It is an arithmetic number, because the mean of its divisors is an integer number (61271546).

Almost surely, 2^385135388 is an apocalyptic number.

It is an amenable number.

385135388 is a deficient number, since it is larger than the sum of its proper divisors (350123164).

385135388 is a wasteful number, since it uses less digits than its factorization.

385135388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8753092 (or 8753090 counting only the distinct ones).

The product of its digits is 345600, while the sum is 44.

The square root of 385135388 is about 19624.8665727948. The cubic root of 385135388 is about 727.5638992381.

The spelling of 385135388 in words is "three hundred eighty-five million, one hundred thirty-five thousand, three hundred eighty-eight".