228140622 has 48 divisors (see below), whose sum is σ = 518441040. Its totient is φ = 72406656.

The previous prime is 228140599. The next prime is 228140623. The reversal of 228140622 is 226041822.

It is a happy number.

228140622 is a `hidden beast` number, since 2 + 28 + 14 + 0 + 622 = 666.

228140622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228140623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35113 + ... + 41099.

It is an arithmetic number, because the mean of its divisors is an integer number (10800855).

Almost surely, 2^228140622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228140622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259220520).

228140622 is an abundant number, since it is smaller than the sum of its proper divisors (290300418).

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

228140622 is a wasteful number, since it uses less digits than its factorization.

228140622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6097 (or 6094 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 228140622 is about 15104.3246125075. The cubic root of 228140622 is about 611.0370445136.

The spelling of 228140622 in words is "two hundred twenty-eight million, one hundred forty thousand, six hundred twenty-two".