385218083 has 16 divisors (see below), whose sum is σ = 401000544. Its totient is φ = 369795840.

The previous prime is 385218047. The next prime is 385218089. The reversal of 385218083 is 380812583.

It is a cyclic number.

It is not a de Polignac number, because 385218083 - 2⁶ = 385218019 is a prime.

It is a super-3 number, since 3×385218083³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385218089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1215041 + ... + 1215357.

It is an arithmetic number, because the mean of its divisors is an integer number (25062534).

Almost surely, 2^385218083 is an apocalyptic number.

385218083 is a deficient number, since it is larger than the sum of its proper divisors (15782461).

385218083 is a wasteful number, since it uses less digits than its factorization.

385218083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 385218083 is about 19626.9733530160. The cubic root of 385218083 is about 727.6159688849.

It can be divided in two parts, 3852 and 18083, that multiplied together give a square (69655716 = 8346²).

The spelling of 385218083 in words is "three hundred eighty-five million, two hundred eighteen thousand, eighty-three".