227978648 has 8 divisors (see below), whose sum is σ = 427459980. Its totient is φ = 113989320.

The previous prime is 227978609. The next prime is 227978651. The reversal of 227978648 is 846879722.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 227978648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14248658 + ... + 14248673.

Almost surely, 2^227978648 is an apocalyptic number.

It is an amenable number.

227978648 is a deficient number, since it is larger than the sum of its proper divisors (199481332).

227978648 is a wasteful number, since it uses less digits than its factorization.

227978648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28497337 (or 28497333 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 53.

The square root of 227978648 is about 15098.9618186152. The cubic root of 227978648 is about 610.8924033924.

The spelling of 227978648 in words is "two hundred twenty-seven million, nine hundred seventy-eight thousand, six hundred forty-eight".