228697488 has 60 divisors (see below), whose sum is σ = 653672448. Its totient is φ = 74608320.

The previous prime is 228697477. The next prime is 228697493. The reversal of 228697488 is 884796822.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10128 + ... + 23663.

Almost surely, 2^228697488 is an apocalyptic number.

It is an amenable number.

228697488 is an abundant number, since it is smaller than the sum of its proper divisors (424974960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228697488 is a wasteful number, since it uses less digits than its factorization.

228697488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33852 (or 33843 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 228697488 is about 15122.7473694432. The cubic root of 228697488 is about 611.5337984839.

The spelling of 228697488 in words is "two hundred twenty-eight million, six hundred ninety-seven thousand, four hundred eighty-eight".