228447744822 has 32 divisors (see below), whose sum is σ = 553812716160. Its totient is φ = 69226589160.

The previous prime is 228447744757. The next prime is 228447744839.

228447744822 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×228447744822² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192295488 + ... + 192296675.

It is an arithmetic number, because the mean of its divisors is an integer number (17306647380).

Almost surely, 2^228447744822 is an apocalyptic number.

228447744822 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

228447744822 is an abundant number, since it is smaller than the sum of its proper divisors (325364971338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228447744822 is a wasteful number, since it uses less digits than its factorization.

228447744822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384592185 (or 384592179 counting only the distinct ones).

The product of its digits is 12845056, while the sum is 54.

The spelling of 228447744822 in words is "two hundred twenty-eight billion, four hundred forty-seven million, seven hundred forty-four thousand, eight hundred twenty-two".