228887492 has 12 divisors (see below), whose sum is σ = 401084796. Its totient is φ = 114291840.

The previous prime is 228887437. The next prime is 228887497. The reversal of 228887492 is 294788822.

It can be written as a sum of positive squares in 2 ways, for example, as 29964676 + 198922816 = 5474^2 + 14104^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 228887492.

It is not an unprimeable number, because it can be changed into a prime (228887497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34553 + ... + 40640.

It is an arithmetic number, because the mean of its divisors is an integer number (33423733).

Almost surely, 2^228887492 is an apocalyptic number.

It is an amenable number.

228887492 is a deficient number, since it is larger than the sum of its proper divisors (172197304).

228887492 is a wasteful number, since it uses less digits than its factorization.

228887492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75958 (or 75956 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 50.

The square root of 228887492 is about 15129.0281247673. The cubic root of 228887492 is about 611.7031075937.

The spelling of 228887492 in words is "two hundred twenty-eight million, eight hundred eighty-seven thousand, four hundred ninety-two".