385003836 has 36 divisors (see below), whose sum is σ = 1112234032. Its totient is φ = 110001024.

The previous prime is 385003823. The next prime is 385003847. The reversal of 385003836 is 638300583.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 385003836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 763645 + ... + 764148.

Almost surely, 2^385003836 is an apocalyptic number.

385003836 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

385003836 is an abundant number, since it is smaller than the sum of its proper divisors (727230196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385003836 is a wasteful number, since it uses less digits than its factorization.

385003836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527810 (or 1527805 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 385003836 is about 19621.5146204364. The cubic root of 385003836 is about 727.4810509820.

The spelling of 385003836 in words is "three hundred eighty-five million, three thousand, eight hundred thirty-six".