285838372 has 12 divisors (see below), whose sum is σ = 511850416. Its totient is φ = 139595400.

The previous prime is 285838361. The next prime is 285838373. The reversal of 285838372 is 273838582.

It is a super-2 number, since 2×285838372² = 163407149815220768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (285838373) 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, 830754 + ... + 831097.

Almost surely, 2^285838372 is an apocalyptic number.

It is an amenable number.

285838372 is a deficient number, since it is larger than the sum of its proper divisors (226012044).

285838372 is a wasteful number, since it uses less digits than its factorization.

285838372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661898 (or 1661896 counting only the distinct ones).

The product of its digits is 645120, while the sum is 46.

The square root of 285838372 is about 16906.7552179595. The cubic root of 285838372 is about 658.7290908608.

The spelling of 285838372 in words is "two hundred eighty-five million, eight hundred thirty-eight thousand, three hundred seventy-two".