228002520 has 64 divisors (see below), whose sum is σ = 706083840. Its totient is φ = 58838400.

The previous prime is 228002501. The next prime is 228002531. The reversal of 228002520 is 25200822.

228002520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26926 + ... + 34365.

It is an arithmetic number, because the mean of its divisors is an integer number (11032560).

Almost surely, 2^228002520 is an apocalyptic number.

228002520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228002520 is an abundant number, since it is smaller than the sum of its proper divisors (478081320).

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

228002520 is a wasteful number, since it uses less digits than its factorization.

228002520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61336 (or 61332 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 228002520 is about 15099.7523158494. The cubic root of 228002520 is about 610.9137251472.

The spelling of 228002520 in words is "two hundred twenty-eight million, two thousand, five hundred twenty".