228291033 has 8 divisors (see below), whose sum is σ = 305380768. Its totient is φ = 151697664.

The previous prime is 228291013. The next prime is 228291053. The reversal of 228291033 is 330192822.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (228291013) and next prime (228291053).

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

It is not a de Polignac number, because 228291033 - 2⁶ = 228290969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228291013) 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 7 ways as a sum of consecutive naturals, for example, 123016 + ... + 124857.

It is an arithmetic number, because the mean of its divisors is an integer number (38172596).

Almost surely, 2^228291033 is an apocalyptic number.

It is an amenable number.

228291033 is a deficient number, since it is larger than the sum of its proper divisors (77089735).

228291033 is a wasteful number, since it uses less digits than its factorization.

228291033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248183.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 228291033 is about 15109.3028628061. The cubic root of 228291033 is about 611.1712987026.

The spelling of 228291033 in words is "two hundred twenty-eight million, two hundred ninety-one thousand, thirty-three".