228840407209736 has 16 divisors (see below), whose sum is σ = 490372301163840. Its totient is φ = 98074460232720.

The previous prime is 228840407209691. The next prime is 228840407209741. The reversal of 228840407209736 is 637902704048822.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2043217921460 + ... + 2043217921571.

It is an arithmetic number, because the mean of its divisors is an integer number (30648268822740).

Almost surely, 2^{228840407209736} is an apocalyptic number.

It is an amenable number.

228840407209736 is an abundant number, since it is smaller than the sum of its proper divisors (261531893954104).

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

228840407209736 is a wasteful number, since it uses less digits than its factorization.

228840407209736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4086435843044 (or 4086435843040 counting only the distinct ones).

The product of its (nonzero) digits is 65028096, while the sum is 62.

The spelling of 228840407209736 in words is "two hundred twenty-eight trillion, eight hundred forty billion, four hundred seven million, two hundred nine thousand, seven hundred thirty-six".