228531804 has 12 divisors (see below), whose sum is σ = 533240904. Its totient is φ = 76177264.

The previous prime is 228531773. The next prime is 228531811. The reversal of 228531804 is 408135822.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9522147 + ... + 9522170.

It is an arithmetic number, because the mean of its divisors is an integer number (44436742).

Almost surely, 2^228531804 is an apocalyptic number.

It is an amenable number.

228531804 is an abundant number, since it is smaller than the sum of its proper divisors (304709100).

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

228531804 is a wasteful number, since it uses less digits than its factorization.

228531804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19044324 (or 19044322 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 228531804 is about 15117.2684040471. The cubic root of 228531804 is about 611.3860839278.

The spelling of 228531804 in words is "two hundred twenty-eight million, five hundred thirty-one thousand, eight hundred four".