228451867 has 12 divisors (see below), whose sum is σ = 266000760. Its totient is φ = 195631296.

The previous prime is 228451859. The next prime is 228451871. The reversal of 228451867 is 768154822.

It is a happy number.

It is not a de Polignac number, because 228451867 - 2³ = 228451859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228451367) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 86259 + ... + 88867.

It is an arithmetic number, because the mean of its divisors is an integer number (22166730).

Almost surely, 2^228451867 is an apocalyptic number.

228451867 is a deficient number, since it is larger than the sum of its proper divisors (37548893).

228451867 is a wasteful number, since it uses less digits than its factorization.

228451867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4410 (or 4403 counting only the distinct ones).

The product of its digits is 215040, while the sum is 43.

The square root of 228451867 is about 15114.6242758462. The cubic root of 228451867 is about 611.3147910517.

The spelling of 228451867 in words is "two hundred twenty-eight million, four hundred fifty-one thousand, eight hundred sixty-seven".