228733361 has 4 divisors (see below), whose sum is σ = 231628800. Its totient is φ = 225837924.

The previous prime is 228733333. The next prime is 228733363. The reversal of 228733361 is 163337822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 228733361 - 2²² = 224539057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228733363) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1447601 + ... + 1447758.

It is an arithmetic number, because the mean of its divisors is an integer number (57907200).

Almost surely, 2^228733361 is an apocalyptic number.

It is an amenable number.

228733361 is a deficient number, since it is larger than the sum of its proper divisors (2895439).

228733361 is an equidigital number, since it uses as much as digits as its factorization.

228733361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2895438.

The product of its digits is 36288, while the sum is 35.

The square root of 228733361 is about 15123.9333838787. The cubic root of 228733361 is about 611.5657714411.

The spelling of 228733361 in words is "two hundred twenty-eight million, seven hundred thirty-three thousand, three hundred sixty-one".