284480838 has 12 divisors (see below), whose sum is σ = 616375188. Its totient is φ = 94826940.

The previous prime is 284480821. The next prime is 284480891. The reversal of 284480838 is 838084482.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 284480793 and 284480802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7902228 + ... + 7902263.

It is an arithmetic number, because the mean of its divisors is an integer number (51364599).

Almost surely, 2^284480838 is an apocalyptic number.

284480838 is an abundant number, since it is smaller than the sum of its proper divisors (331894350).

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

284480838 is a wasteful number, since it uses less digits than its factorization.

284480838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15804499 (or 15804496 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 45.

The square root of 284480838 is about 16866.5597559194. The cubic root of 284480838 is about 657.6846001543.

The spelling of 284480838 in words is "two hundred eighty-four million, four hundred eighty thousand, eight hundred thirty-eight".