385903355 has 4 divisors (see below), whose sum is σ = 463084032. Its totient is φ = 308722680.

The previous prime is 385903351. The next prime is 385903367. The reversal of 385903355 is 553309583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 553309583 = 19 ⋅29121557.

It is not a de Polignac number, because 385903355 - 2² = 385903351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385903351) 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, 38590331 + ... + 38590340.

It is an arithmetic number, because the mean of its divisors is an integer number (115771008).

Almost surely, 2^385903355 is an apocalyptic number.

385903355 is a deficient number, since it is larger than the sum of its proper divisors (77180677).

385903355 is an equidigital number, since it uses as much as digits as its factorization.

385903355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77180676.

The product of its (nonzero) digits is 243000, while the sum is 41.

The square root of 385903355 is about 19644.4229999254. The cubic root of 385903355 is about 728.0471700658.

The spelling of 385903355 in words is "three hundred eighty-five million, nine hundred three thousand, three hundred fifty-five".