228162377 has 4 divisors (see below), whose sum is σ = 228353556. Its totient is φ = 227971200.

The previous prime is 228162371. The next prime is 228162379. The reversal of 228162377 is 773261822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66846976 + 161315401 = 8176^2 + 12701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228162377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228162377.

It is not an unprimeable number, because it can be changed into a prime (228162371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93788 + ... + 96189.

It is an arithmetic number, because the mean of its divisors is an integer number (57088389).

Almost surely, 2^228162377 is an apocalyptic number.

It is an amenable number.

228162377 is a deficient number, since it is larger than the sum of its proper divisors (191179).

228162377 is a wasteful number, since it uses less digits than its factorization.

228162377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191178.

The product of its digits is 56448, while the sum is 38.

The square root of 228162377 is about 15105.0447533266. The cubic root of 228162377 is about 611.0564662899.

The spelling of 228162377 in words is "two hundred twenty-eight million, one hundred sixty-two thousand, three hundred seventy-seven".