228360918 has 16 divisors (see below), whose sum is σ = 457205760. Its totient is φ = 76039656.

The previous prime is 228360887. The next prime is 228360919. The reversal of 228360918 is 819063822.

It is a happy number.

228360918 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 (228360919) 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, 13878 + ... + 25481.

It is an arithmetic number, because the mean of its divisors is an integer number (28575360).

Almost surely, 2^228360918 is an apocalyptic number.

228360918 is an abundant number, since it is smaller than the sum of its proper divisors (228844842).

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

228360918 is a wasteful number, since it uses less digits than its factorization.

228360918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40331.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 228360918 is about 15111.6153339079. The cubic root of 228360918 is about 611.2336567491.

The spelling of 228360918 in words is "two hundred twenty-eight million, three hundred sixty thousand, nine hundred eighteen".