284842940 has 12 divisors (see below), whose sum is σ = 598170216. Its totient is φ = 113937168.

The previous prime is 284842937. The next prime is 284842963. The reversal of 284842940 is 49248482.

It is a super-2 number, since 2×284842940² = 162271000935687200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7121054 + ... + 7121093.

It is an arithmetic number, because the mean of its divisors is an integer number (49847518).

Almost surely, 2^284842940 is an apocalyptic number.

284842940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

284842940 is an abundant number, since it is smaller than the sum of its proper divisors (313327276).

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

284842940 is a wasteful number, since it uses less digits than its factorization.

284842940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14242156 (or 14242154 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 284842940 is about 16877.2906593446. The cubic root of 284842940 is about 657.9635268937.

The spelling of 284842940 in words is "two hundred eighty-four million, eight hundred forty-two thousand, nine hundred forty".