284674872 has 64 divisors (see below), whose sum is σ = 763344000. Its totient is φ = 88193664.

The previous prime is 284674837. The next prime is 284674879. The reversal of 284674872 is 278476482.

It is a happy number.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284674879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18279 + ... + 30057.

It is an arithmetic number, because the mean of its divisors is an integer number (11927250).

Almost surely, 2^284674872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 284674872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381672000).

284674872 is an abundant number, since it is smaller than the sum of its proper divisors (478669128).

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

284674872 is a wasteful number, since it uses less digits than its factorization.

284674872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11860 (or 11856 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 48.

The square root of 284674872 is about 16872.3108079480. The cubic root of 284674872 is about 657.8340937279.

The spelling of 284674872 in words is "two hundred eighty-four million, six hundred seventy-four thousand, eight hundred seventy-two".