228687532 has 6 divisors (see below), whose sum is σ = 400203188. Its totient is φ = 114343764.

The previous prime is 228687523. The next prime is 228687539. The reversal of 228687532 is 235786822.

It is not an unprimeable number, because it can be changed into a prime (228687539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28585938 + ... + 28585945.

Almost surely, 2^228687532 is an apocalyptic number.

It is an amenable number.

228687532 is a deficient number, since it is larger than the sum of its proper divisors (171515656).

228687532 is a wasteful number, since it uses less digits than its factorization.

228687532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57171887 (or 57171885 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 228687532 is about 15122.4181928685. The cubic root of 228687532 is about 611.5249242881.

The spelling of 228687532 in words is "two hundred twenty-eight million, six hundred eighty-seven thousand, five hundred thirty-two".