228697384 has 8 divisors (see below), whose sum is σ = 428807610. Its totient is φ = 114348688.

The previous prime is 228697373. The next prime is 228697411. The reversal of 228697384 is 483796822.

It can be written as a sum of positive squares in only one way, i.e., 228674884 + 22500 = 15122^2 + 150^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14293579 + ... + 14293594.

Almost surely, 2^228697384 is an apocalyptic number.

It is an amenable number.

228697384 is a deficient number, since it is larger than the sum of its proper divisors (200110226).

228697384 is a wasteful number, since it uses less digits than its factorization.

228697384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28587179 (or 28587175 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The square root of 228697384 is about 15122.7439309141. The cubic root of 228697384 is about 611.5337057857.

The spelling of 228697384 in words is "two hundred twenty-eight million, six hundred ninety-seven thousand, three hundred eighty-four".