228917952 has 42 divisors (see below), whose sum is σ = 656153628. Its totient is φ = 76305792.

The previous prime is 228917921. The next prime is 228917957. The reversal of 228917952 is 259719822.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 228917898 and 228917907.

It is not an unprimeable number, because it can be changed into a prime (228917957) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 198138 + ... + 199289.

Almost surely, 2^228917952 is an apocalyptic number.

It is an amenable number.

228917952 is an abundant number, since it is smaller than the sum of its proper divisors (427235676).

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

228917952 is a wasteful number, since it uses less digits than its factorization.

228917952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397445 (or 397432 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 228917952 is about 15130.0347653269. The cubic root of 228917952 is about 611.7302412305.

The spelling of 228917952 in words is "two hundred twenty-eight million, nine hundred seventeen thousand, nine hundred fifty-two".