228923760 has 160 divisors (see below), whose sum is σ = 769950720. Its totient is φ = 55931904.

The previous prime is 228923759. The next prime is 228923771. The reversal of 228923760 is 67329822.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 745527 + ... + 745833.

It is an arithmetic number, because the mean of its divisors is an integer number (4812192).

Almost surely, 2^228923760 is an apocalyptic number.

228923760 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 228923760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384975360).

228923760 is an abundant number, since it is smaller than the sum of its proper divisors (541026960).

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

228923760 is a wasteful number, since it uses less digits than its factorization.

228923760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 228923760 is about 15130.2267002183. The cubic root of 228923760 is about 611.7354146986.

The spelling of 228923760 in words is "two hundred twenty-eight million, nine hundred twenty-three thousand, seven hundred sixty".