228700422 has 56 divisors (see below), whose sum is σ = 544655016. Its totient is φ = 71741376.

The previous prime is 228700411. The next prime is 228700429. The reversal of 228700422 is 224007822.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228700429) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 20173 + ... + 29399.

Almost surely, 2^228700422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228700422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272327508).

228700422 is an abundant number, since it is smaller than the sum of its proper divisors (315954594).

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

228700422 is an equidigital number, since it uses as much as digits as its factorization.

228700422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9264 (or 9249 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 228700422 is about 15122.8443753151. The cubic root of 228700422 is about 611.5364136306.

The spelling of 228700422 in words is "two hundred twenty-eight million, seven hundred thousand, four hundred twenty-two".