284220246 has 32 divisors (see below), whose sum is σ = 628051968. Its totient is φ = 85289600.

The previous prime is 284220227. The next prime is 284220247. The reversal of 284220246 is 642022482.

It is a super-2 number, since 2×284220246² = 161562296472601032, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284220247) 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, 58230 + ... + 62921.

It is an arithmetic number, because the mean of its divisors is an integer number (19626624).

Almost surely, 2^284220246 is an apocalyptic number.

284220246 is an abundant number, since it is smaller than the sum of its proper divisors (343831722).

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

284220246 is a wasteful number, since it uses less digits than its factorization.

284220246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121196.

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 284220246 is about 16858.8328777528. The cubic root of 284220246 is about 657.4837199533.

It can be divided in two parts, 28422024 and 6, that added together give a triangular number (28422030 = T₇₅₃₉).

The spelling of 284220246 in words is "two hundred eighty-four million, two hundred twenty thousand, two hundred forty-six".