228751012 has 36 divisors (see below), whose sum is σ = 467763660. Its totient is φ = 97595904.

The previous prime is 228751009. The next prime is 228751027. The reversal of 228751012 is 210157822.

228751012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 75585636 + 153165376 = 8694^2 + 12376^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43164 + ... + 48172.

It is an arithmetic number, because the mean of its divisors is an integer number (12993435).

Almost surely, 2^228751012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228751012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233881830).

228751012 is an abundant number, since it is smaller than the sum of its proper divisors (239012648).

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

228751012 is a wasteful number, since it uses less digits than its factorization.

228751012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5260 (or 5251 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 228751012 is about 15124.5169179052. The cubic root of 228751012 is about 611.5815022317.

The spelling of 228751012 in words is "two hundred twenty-eight million, seven hundred fifty-one thousand, twelve".