228300520 has 64 divisors (see below), whose sum is σ = 594547200. Its totient is φ = 77276160.

The previous prime is 228300517. The next prime is 228300539. The reversal of 228300520 is 25003822.

It is a super-2 number, since 2×228300520² = 104242254864540800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228300491 and 228300500.

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, 16960 + ... + 27280.

It is an arithmetic number, because the mean of its divisors is an integer number (9289800).

Almost surely, 2^228300520 is an apocalyptic number.

228300520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228300520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297273600).

228300520 is an abundant number, since it is smaller than the sum of its proper divisors (366246680).

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

228300520 is a wasteful number, since it uses less digits than its factorization.

228300520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10418 (or 10414 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 228300520 is about 15109.6168052006. The cubic root of 228300520 is about 611.1797646531.

The spelling of 228300520 in words is "two hundred twenty-eight million, three hundred thousand, five hundred twenty".