284716240 has 20 divisors (see below), whose sum is σ = 661965444. Its totient is φ = 113886464.

The previous prime is 284716231. The next prime is 284716247. The reversal of 284716240 is 42617482.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 123832384 + 160883856 = 11128^2 + 12684^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 284716196 and 284716205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284716247) 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 3 ways as a sum of consecutive naturals, for example, 1779397 + ... + 1779556.

Almost surely, 2^284716240 is an apocalyptic number.

284716240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

284716240 is an abundant number, since it is smaller than the sum of its proper divisors (377249204).

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

284716240 is a wasteful number, since it uses less digits than its factorization.

284716240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3558966 (or 3558960 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 284716240 is about 16873.5366772944. The cubic root of 284716240 is about 657.8659569344.

The spelling of 284716240 in words is "two hundred eighty-four million, seven hundred sixteen thousand, two hundred forty".