228321144046 has 4 divisors (see below), whose sum is σ = 342481716072. Its totient is φ = 114160572022.

The previous prime is 228321144043. The next prime is 228321144053. The reversal of 228321144046 is 640441123822.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 228321143996 and 228321144014.

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 as a sum of consecutive naturals, namely, 57080286010 + ... + 57080286013.

It is an arithmetic number, because the mean of its divisors is an integer number (85620429018).

Almost surely, 2^228321144046 is an apocalyptic number.

228321144046 is a deficient number, since it is larger than the sum of its proper divisors (114160572026).

228321144046 is a wasteful number, since it uses less digits than its factorization.

228321144046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114160572025.

The product of its (nonzero) digits is 73728, while the sum is 37.

Adding to 228321144046 its reverse (640441123822), we get a palindrome (868762267868).

The spelling of 228321144046 in words is "two hundred twenty-eight billion, three hundred twenty-one million, one hundred forty-four thousand, forty-six".