228751488 has 192 divisors, whose sum is σ = 792417600. Its totient is φ = 61876224.

The previous prime is 228751483. The next prime is 228751517. The reversal of 228751488 is 884157822.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is not an unprimeable number, because it can be changed into a prime (228751483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152470 + ... + 153962.

It is an arithmetic number, because the mean of its divisors is an integer number (4127175).

Almost surely, 2^228751488 is an apocalyptic number.

228751488 is a gapful number since it is divisible by the number (28) 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 228751488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396208800).

228751488 is an abundant number, since it is smaller than the sum of its proper divisors (563666112).

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

228751488 is a wasteful number, since it uses less digits than its factorization.

228751488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539 (or 1524 counting only the distinct ones).

The product of its digits is 286720, while the sum is 45.

The square root of 228751488 is about 15124.5326539368. The cubic root of 228751488 is about 611.5819264376.

The spelling of 228751488 in words is "two hundred twenty-eight million, seven hundred fifty-one thousand, four hundred eighty-eight".