284334385 has 16 divisors (see below), whose sum is σ = 350133840. Its totient is φ = 221532160.

The previous prime is 284334383. The next prime is 284334397. The reversal of 284334385 is 583433482.

It can be written as a sum of positive squares in 8 ways, for example, as 57289761 + 227044624 = 7569^2 + 15068^2 .

It is not a de Polignac number, because 284334385 - 2¹ = 284334383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (284334383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189699 + ... + 191191.

It is an arithmetic number, because the mean of its divisors is an integer number (21883365).

Almost surely, 2^284334385 is an apocalyptic number.

It is an amenable number.

284334385 is a deficient number, since it is larger than the sum of its proper divisors (65799455).

284334385 is a wasteful number, since it uses less digits than its factorization.

284334385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468.

The product of its digits is 276480, while the sum is 40.

The square root of 284334385 is about 16862.2176773994. The cubic root of 284334385 is about 657.5717203591.

The spelling of 284334385 in words is "two hundred eighty-four million, three hundred thirty-four thousand, three hundred eighty-five".