228523660 has 24 divisors (see below), whose sum is σ = 480248496. Its totient is φ = 91343040.

The previous prime is 228523657. The next prime is 228523663. The reversal of 228523660 is 66325822.

228523660 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (228523657) and next prime (228523663).

It is not an unprimeable number, because it can be changed into a prime (228523663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31539 + ... + 38101.

It is an arithmetic number, because the mean of its divisors is an integer number (20010354).

Almost surely, 2^228523660 is an apocalyptic number.

228523660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228523660 is an abundant number, since it is smaller than the sum of its proper divisors (251724836).

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

228523660 is a wasteful number, since it uses less digits than its factorization.

228523660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8313 (or 8311 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 228523660 is about 15116.9990408149. Note that the first 3 decimals coincide. The cubic root of 228523660 is about 611.3788213538.

The spelling of 228523660 in words is "two hundred twenty-eight million, five hundred twenty-three thousand, six hundred sixty".