228326340 has 96 divisors (see below), whose sum is σ = 699882624. Its totient is φ = 55157760.

The previous prime is 228326327. The next prime is 228326369. The reversal of 228326340 is 43623822.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 228326298 and 228326307.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 301242 + ... + 301998.

It is an arithmetic number, because the mean of its divisors is an integer number (7290444).

Almost surely, 2^228326340 is an apocalyptic number.

228326340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228326340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349941312).

228326340 is an abundant number, since it is smaller than the sum of its proper divisors (471556284).

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

228326340 is a wasteful number, since it uses less digits than its factorization.

228326340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237 (or 1235 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 228326340 is about 15110.4712037712. The cubic root of 228326340 is about 611.2028045578.

The spelling of 228326340 in words is "two hundred twenty-eight million, three hundred twenty-six thousand, three hundred forty".