284371668 has 48 divisors (see below), whose sum is σ = 842584960. Its totient is φ = 81248832.

The previous prime is 284371657. The next prime is 284371673. The reversal of 284371668 is 866173482.

It is a super-2 number, since 2×284371668² = 161734491122204448, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187321 + ... + 188832.

Almost surely, 2^284371668 is an apocalyptic number.

284371668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

284371668 is an abundant number, since it is smaller than the sum of its proper divisors (558213292).

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

284371668 is a wasteful number, since it uses less digits than its factorization.

284371668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376173 (or 376165 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 284371668 is about 16863.3231600417. The cubic root of 284371668 is about 657.6004602000.

The spelling of 284371668 in words is "two hundred eighty-four million, three hundred seventy-one thousand, six hundred sixty-eight".