228244533 has 32 divisors (see below), whose sum is σ = 354170880. Its totient is φ = 129212160.

The previous prime is 228244517. The next prime is 228244579. The reversal of 228244533 is 335442822.

It is not a de Polignac number, because 228244533 - 2⁴ = 228244517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 228244494 and 228244503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228244333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76516 + ... + 79442.

It is an arithmetic number, because the mean of its divisors is an integer number (11067840).

Almost surely, 2^228244533 is an apocalyptic number.

It is an amenable number.

228244533 is a deficient number, since it is larger than the sum of its proper divisors (125926347).

228244533 is a wasteful number, since it uses less digits than its factorization.

228244533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097.

The product of its digits is 46080, while the sum is 33.

The square root of 228244533 is about 15107.7639973624. The cubic root of 228244533 is about 611.1297999268.

The spelling of 228244533 in words is "two hundred twenty-eight million, two hundred forty-four thousand, five hundred thirty-three".