284220484 has 12 divisors (see below), whose sum is σ = 526643964. Its totient is φ = 133750784.

The previous prime is 284220451. The next prime is 284220491. The reversal of 284220484 is 484022482.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 142086400 + 142134084 = 11920^2 + 11922^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2089789 + ... + 2089924.

It is an arithmetic number, because the mean of its divisors is an integer number (43886997).

Almost surely, 2^284220484 is an apocalyptic number.

It is an amenable number.

284220484 is a deficient number, since it is larger than the sum of its proper divisors (242423480).

284220484 is a wasteful number, since it uses less digits than its factorization.

284220484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179734 (or 4179732 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 34.

The square root of 284220484 is about 16858.8399363657. The cubic root of 284220484 is about 657.4839034742.

The spelling of 284220484 in words is "two hundred eighty-four million, two hundred twenty thousand, four hundred eighty-four".