228803040 has 144 divisors (see below), whose sum is σ = 807861600. Its totient is φ = 58899456.

The previous prime is 228802999. The next prime is 228803063. The reversal of 228803040 is 40308822.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×228803040² = 104701662226483200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228802995 and 228803013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39021 + ... + 44499.

It is an arithmetic number, because the mean of its divisors is an integer number (5610150).

Almost surely, 2^228803040 is an apocalyptic number.

228803040 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 228803040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403930800).

228803040 is an abundant number, since it is smaller than the sum of its proper divisors (579058560).

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

228803040 is a wasteful number, since it uses less digits than its factorization.

228803040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5529 (or 5518 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 228803040 is about 15126.2368089357. The cubic root of 228803040 is about 611.6278655243.

The spelling of 228803040 in words is "two hundred twenty-eight million, eight hundred three thousand, forty".