228467933 has 4 divisors (see below), whose sum is σ = 234642780. Its totient is φ = 222293088.

The previous prime is 228467927. The next prime is 228467957. The reversal of 228467933 is 339764822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 119202724 + 109265209 = 10918^2 + 10453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228467933 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 (228467963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3087368 + ... + 3087441.

It is an arithmetic number, because the mean of its divisors is an integer number (58660695).

Almost surely, 2^228467933 is an apocalyptic number.

It is an amenable number.

228467933 is a deficient number, since it is larger than the sum of its proper divisors (6174847).

228467933 is an equidigital number, since it uses as much as digits as its factorization.

228467933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6174846.

The product of its digits is 435456, while the sum is 44.

The square root of 228467933 is about 15115.1557385295. The cubic root of 228467933 is about 611.3291210625.

The spelling of 228467933 in words is "two hundred twenty-eight million, four hundred sixty-seven thousand, nine hundred thirty-three".