228340373540 has 24 divisors (see below), whose sum is σ = 489717228672. Its totient is φ = 89392826720.

The previous prime is 228340373497. The next prime is 228340373549. The reversal of 228340373540 is 45373043822.

It is not an unprimeable number, because it can be changed into a prime (228340373549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121456706 + ... + 121458585.

It is an arithmetic number, because the mean of its divisors is an integer number (20404884528).

Almost surely, 2^228340373540 is an apocalyptic number.

228340373540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228340373540 is an abundant number, since it is smaller than the sum of its proper divisors (261376855132).

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

228340373540 is a wasteful number, since it uses less digits than its factorization.

228340373540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242915347 (or 242915345 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 41.

The spelling of 228340373540 in words is "two hundred twenty-eight billion, three hundred forty million, three hundred seventy-three thousand, five hundred forty".