228642486 has 32 divisors (see below), whose sum is σ = 496002528. Its totient is φ = 69980160.

The previous prime is 228642461. The next prime is 228642551. The reversal of 228642486 is 684246822.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23155 + ... + 31518.

It is an arithmetic number, because the mean of its divisors is an integer number (15500079).

Almost surely, 2^228642486 is an apocalyptic number.

228642486 is an abundant number, since it is smaller than the sum of its proper divisors (267360042).

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

228642486 is a wasteful number, since it uses less digits than its factorization.

228642486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54736.

The product of its digits is 294912, while the sum is 42.

The square root of 228642486 is about 15120.9287413174. The cubic root of 228642486 is about 611.4847697005.

The spelling of 228642486 in words is "two hundred twenty-eight million, six hundred forty-two thousand, four hundred eighty-six".