228404733 has 8 divisors (see below), whose sum is σ = 307555296. Its totient is φ = 150762000.

The previous prime is 228404723. The next prime is 228404747. The reversal of 228404733 is 337404822.

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

It is not a de Polignac number, because 228404733 - 2¹³ = 228396541 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 228404694 and 228404703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228404713) 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, 376603 + ... + 377208.

It is an arithmetic number, because the mean of its divisors is an integer number (38444412).

Almost surely, 2^228404733 is an apocalyptic number.

It is an amenable number.

228404733 is a deficient number, since it is larger than the sum of its proper divisors (79150563).

228404733 is a wasteful number, since it uses less digits than its factorization.

228404733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753915.

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 228404733 is about 15113.0649770323. The cubic root of 228404733 is about 611.2727461728.

The spelling of 228404733 in words is "two hundred twenty-eight million, four hundred four thousand, seven hundred thirty-three".