228606320 has 20 divisors (see below), whose sum is σ = 531509880. Its totient is φ = 91442496.

The previous prime is 228606317. The next prime is 228606341. The reversal of 228606320 is 23606822.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428710 + ... + 1428869.

It is an arithmetic number, because the mean of its divisors is an integer number (26575494).

Almost surely, 2^228606320 is an apocalyptic number.

228606320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228606320 is an abundant number, since it is smaller than the sum of its proper divisors (302903560).

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

228606320 is a wasteful number, since it uses less digits than its factorization.

228606320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857592 (or 2857586 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 228606320 is about 15119.7328018719. The cubic root of 228606320 is about 611.4525270426.

The spelling of 228606320 in words is "two hundred twenty-eight million, six hundred six thousand, three hundred twenty".