284855474 has 16 divisors (see below), whose sum is σ = 430073280. Its totient is φ = 141501360.

The previous prime is 284855471. The next prime is 284855503. The reversal of 284855474 is 474558482.

It is a super-2 number, since 2×284855474² = 162285282135529352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (284855471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260072 + ... + 261164.

It is an arithmetic number, because the mean of its divisors is an integer number (26879580).

Almost surely, 2^284855474 is an apocalyptic number.

284855474 is a deficient number, since it is larger than the sum of its proper divisors (145217806).

284855474 is a wasteful number, since it uses less digits than its factorization.

284855474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825.

The product of its digits is 1433600, while the sum is 47.

The square root of 284855474 is about 16877.6619826325. The cubic root of 284855474 is about 657.9731775851.

The spelling of 284855474 in words is "two hundred eighty-four million, eight hundred fifty-five thousand, four hundred seventy-four".