228472807 has 8 divisors (see below), whose sum is σ = 231042240. Its totient is φ = 225909600.

The previous prime is 228472789. The next prime is 228472813. The reversal of 228472807 is 708274822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228472807 - 2⁷ = 228472679 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228472807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228472847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143538 + ... + 145120.

It is an arithmetic number, because the mean of its divisors is an integer number (28880280).

Almost surely, 2^228472807 is an apocalyptic number.

228472807 is a deficient number, since it is larger than the sum of its proper divisors (2569433).

228472807 is a wasteful number, since it uses less digits than its factorization.

228472807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3113.

The product of its (nonzero) digits is 100352, while the sum is 40.

The square root of 228472807 is about 15115.3169665740. The cubic root of 228472807 is about 611.3334682765. Note that the first 3 decimals are identical.

The spelling of 228472807 in words is "two hundred twenty-eight million, four hundred seventy-two thousand, eight hundred seven".