284155214 has 12 divisors (see below), whose sum is σ = 495822024. Its totient is φ = 121780764.

The previous prime is 284155211. The next prime is 284155219. The reversal of 284155214 is 412551482.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284155211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1449674 + ... + 1449869.

It is an arithmetic number, because the mean of its divisors is an integer number (41318502).

Almost surely, 2^284155214 is an apocalyptic number.

284155214 is a deficient number, since it is larger than the sum of its proper divisors (211666810).

284155214 is a wasteful number, since it uses less digits than its factorization.

284155214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2899559 (or 2899552 counting only the distinct ones).

The product of its digits is 12800, while the sum is 32.

The square root of 284155214 is about 16856.9040455239. The cubic root of 284155214 is about 657.4335701799.

The spelling of 284155214 in words is "two hundred eighty-four million, one hundred fifty-five thousand, two hundred fourteen".