228500864 has 64 divisors (see below), whose sum is σ = 470016000. Its totient is φ = 110602752.

The previous prime is 228500851. The next prime is 228500873. The reversal of 228500864 is 468005822.

It is a tau number, because it is divible by the number of its divisors (64).

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 7 ways as a sum of consecutive naturals, for example, 596417 + ... + 596799.

It is an arithmetic number, because the mean of its divisors is an integer number (7344000).

Almost surely, 2^228500864 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 228500864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235008000).

228500864 is an abundant number, since it is smaller than the sum of its proper divisors (241515136).

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

228500864 is an equidigital number, since it uses as much as digits as its factorization.

228500864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 228500864 is about 15116.2450363839. The cubic root of 228500864 is about 611.3584916498.

The spelling of 228500864 in words is "two hundred twenty-eight million, five hundred thousand, eight hundred sixty-four".