228701673520 has 40 divisors (see below), whose sum is σ = 532147368960. Its totient is φ = 91409103360.

The previous prime is 228701673481. The next prime is 228701673521. The reversal of 228701673520 is 25376107822.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (228701673521) 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, 1015261 + ... + 1219900.

It is an arithmetic number, because the mean of its divisors is an integer number (13303684224).

Almost surely, 2^228701673520 is an apocalyptic number.

228701673520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228701673520 is an abundant number, since it is smaller than the sum of its proper divisors (303445695440).

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

228701673520 is a wasteful number, since it uses less digits than its factorization.

228701673520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236453 (or 2236447 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 228701673520 in words is "two hundred twenty-eight billion, seven hundred one million, six hundred seventy-three thousand, five hundred twenty".