228730476 has 96 divisors (see below), whose sum is σ = 591349248. Its totient is φ = 68382720.

The previous prime is 228730471. The next prime is 228730501. The reversal of 228730476 is 674037822.

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

It is not an unprimeable number, because it can be changed into a prime (228730471) by changing a digit.

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, 1185036 + ... + 1185228.

It is an arithmetic number, because the mean of its divisors is an integer number (6159888).

Almost surely, 2^228730476 is an apocalyptic number.

228730476 is a gapful number since it is divisible by the number (26) 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 228730476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295674624).

228730476 is an abundant number, since it is smaller than the sum of its proper divisors (362618772).

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

228730476 is a wasteful number, since it uses less digits than its factorization.

228730476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 228730476 is about 15123.8380049510. The cubic root of 228730476 is about 611.5632002163.

The spelling of 228730476 in words is "two hundred twenty-eight million, seven hundred thirty thousand, four hundred seventy-six".