385306233 has 16 divisors (see below), whose sum is σ = 566756736. Its totient is φ = 231327360.

The previous prime is 385306217. The next prime is 385306261. The reversal of 385306233 is 332603583.

It is not a de Polignac number, because 385306233 - 2⁴ = 385306217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 385306194 and 385306203.

It is not an unprimeable number, because it can be changed into a prime (385306283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118885 + ... + 122082.

It is an arithmetic number, because the mean of its divisors is an integer number (35422296).

Almost surely, 2^385306233 is an apocalyptic number.

It is an amenable number.

385306233 is a deficient number, since it is larger than the sum of its proper divisors (181450503).

385306233 is a wasteful number, since it uses less digits than its factorization.

385306233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241024.

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 385306233 is about 19629.2188586301. The cubic root of 385306233 is about 727.6714651166.

The spelling of 385306233 in words is "three hundred eighty-five million, three hundred six thousand, two hundred thirty-three".