284481225 has 36 divisors (see below), whose sum is σ = 582331776. Its totient is φ = 130047840.

The previous prime is 284481217. The next prime is 284481233. The reversal of 284481225 is 522184482.

It is an interprime number because it is at equal distance from previous prime (284481217) and next prime (284481233).

It is not a de Polignac number, because 284481225 - 2³ = 284481217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 284481225.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 88737 + ... + 91886.

Almost surely, 2^284481225 is an apocalyptic number.

284481225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

284481225 is an abundant number, since it is smaller than the sum of its proper divisors (297850551).

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

284481225 is a wasteful number, since it uses less digits than its factorization.

284481225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180646 (or 180638 counting only the distinct ones).

The product of its digits is 40960, while the sum is 36.

The square root of 284481225 is about 16866.5712283202. The cubic root of 284481225 is about 657.6848983863.

The spelling of 284481225 in words is "two hundred eighty-four million, four hundred eighty-one thousand, two hundred twenty-five".