228106558940 has 24 divisors (see below), whose sum is σ = 515871756960. Its totient is φ = 84223960128.

The previous prime is 228106558907. The next prime is 228106558997. The reversal of 228106558940 is 49855601822.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438666200 + ... + 438666719.

It is an arithmetic number, because the mean of its divisors is an integer number (21494656540).

Almost surely, 2^228106558940 is an apocalyptic number.

228106558940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228106558940 is an abundant number, since it is smaller than the sum of its proper divisors (287765198020).

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

228106558940 is a wasteful number, since it uses less digits than its factorization.

228106558940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877332941 (or 877332939 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 50.

The spelling of 228106558940 in words is "two hundred twenty-eight billion, one hundred six million, five hundred fifty-eight thousand, nine hundred forty".