228086621 has 24 divisors (see below), whose sum is σ = 280440000. Its totient is φ = 184451904.

The previous prime is 228086597. The next prime is 228086627. The reversal of 228086621 is 126680822.

It is not a de Polignac number, because 228086621 - 2¹⁰ = 228085597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228086627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 380480 + ... + 381078.

It is an arithmetic number, because the mean of its divisors is an integer number (11685000).

Almost surely, 2^228086621 is an apocalyptic number.

It is an amenable number.

228086621 is a deficient number, since it is larger than the sum of its proper divisors (52353379).

228086621 is a wasteful number, since it uses less digits than its factorization.

228086621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041 (or 1034 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 228086621 is about 15102.5369060963. The cubic root of 228086621 is about 610.9888297839.

The spelling of 228086621 in words is "two hundred twenty-eight million, eighty-six thousand, six hundred twenty-one".