228988933937340 has 24 divisors (see below), whose sum is σ = 641169015024720. Its totient is φ = 61063715716608.

The previous prime is 228988933937339. The next prime is 228988933937341. The reversal of 228988933937340 is 43739339889822.

It is an interprime number because it is at equal distance from previous prime (228988933937339) and next prime (228988933937341).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228988933937341) 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, 1908241116085 + ... + 1908241116204.

It is an arithmetic number, because the mean of its divisors is an integer number (26715375626030).

Almost surely, 2^{228988933937340} is an apocalyptic number.

228988933937340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228988933937340 is an abundant number, since it is smaller than the sum of its proper divisors (412180081087380).

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

228988933937340 is a wasteful number, since it uses less digits than its factorization.

228988933937340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3816482232301 (or 3816482232299 counting only the distinct ones).

The product of its (nonzero) digits is 3386105856, while the sum is 78.

The spelling of 228988933937340 in words is "two hundred twenty-eight trillion, nine hundred eighty-eight billion, nine hundred thirty-three million, nine hundred thirty-seven thousand, three hundred forty".