228877733820 has 48 divisors (see below), whose sum is σ = 641288299680. Its totient is φ = 60993048576.

The previous prime is 228877733803. The next prime is 228877733831. The reversal of 228877733820 is 28337778822.

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, 1191597 + ... + 1370276.

It is an arithmetic number, because the mean of its divisors is an integer number (13360172910).

Almost surely, 2^228877733820 is an apocalyptic number.

228877733820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228877733820 is an abundant number, since it is smaller than the sum of its proper divisors (412410565860).

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

228877733820 is a wasteful number, since it uses less digits than its factorization.

228877733820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563374 (or 2563372 counting only the distinct ones).

The product of its (nonzero) digits is 12644352, while the sum is 57.

The spelling of 228877733820 in words is "two hundred twenty-eight billion, eight hundred seventy-seven million, seven hundred thirty-three thousand, eight hundred twenty".