284420181 has 8 divisors (see below), whose sum is σ = 379330560. Its totient is φ = 189561632.

The previous prime is 284420173. The next prime is 284420233. The reversal of 284420181 is 181024482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 284420181 - 2³ = 284420173 is a prime.

It is a super-2 number, since 2×284420181² = 161789678720145522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284420111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2476 + ... + 23978.

It is an arithmetic number, because the mean of its divisors is an integer number (47416320).

Almost surely, 2^284420181 is an apocalyptic number.

It is an amenable number.

284420181 is a deficient number, since it is larger than the sum of its proper divisors (94910379).

284420181 is a wasteful number, since it uses less digits than its factorization.

284420181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25915.

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 284420181 is about 16864.7615162504. The cubic root of 284420181 is about 657.6378529982.

The spelling of 284420181 in words is "two hundred eighty-four million, four hundred twenty thousand, one hundred eighty-one".