228161486 has 16 divisors (see below), whose sum is σ = 391394400. Its totient is φ = 97718400.

The previous prime is 228161441. The next prime is 228161491. The reversal of 228161486 is 684161822.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20690 + ... + 29738.

It is an arithmetic number, because the mean of its divisors is an integer number (24462150).

Almost surely, 2^228161486 is an apocalyptic number.

228161486 is a deficient number, since it is larger than the sum of its proper divisors (163232914).

228161486 is a wasteful number, since it uses less digits than its factorization.

228161486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10859.

The product of its digits is 36864, while the sum is 38.

The square root of 228161486 is about 15105.0152598400. The cubic root of 228161486 is about 611.0556708739.

The spelling of 228161486 in words is "two hundred twenty-eight million, one hundred sixty-one thousand, four hundred eighty-six".