228321144045 has 48 divisors (see below), whose sum is σ = 411029678592. Its totient is φ = 117120090240.

The previous prime is 228321144043. The next prime is 228321144053. The reversal of 228321144045 is 540441123822.

228321144045 is a `hidden beast` number, since 228 + 3 + 21 + 1 + 4 + 404 + 5 = 666.

It is not a de Polignac number, because 228321144045 - 2¹ = 228321144043 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228321144043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 274674 + ... + 729443.

It is an arithmetic number, because the mean of its divisors is an integer number (8563118304).

Almost surely, 2^228321144045 is an apocalyptic number.

It is an amenable number.

228321144045 is a deficient number, since it is larger than the sum of its proper divisors (182708534547).

228321144045 is a wasteful number, since it uses less digits than its factorization.

228321144045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004322 (or 1004319 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

Adding to 228321144045 its reverse (540441123822), we get a palindrome (768762267867).

The spelling of 228321144045 in words is "two hundred twenty-eight billion, three hundred twenty-one million, one hundred forty-four thousand, forty-five".