228412240 has 40 divisors (see below), whose sum is σ = 606925440. Its totient is φ = 78312576.

The previous prime is 228412229. The next prime is 228412267. The reversal of 228412240 is 42214822.

228412240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

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, 203380 + ... + 204499.

It is an arithmetic number, because the mean of its divisors is an integer number (15173136).

Almost surely, 2^228412240 is an apocalyptic number.

228412240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228412240 is an abundant number, since it is smaller than the sum of its proper divisors (378513200).

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

228412240 is a wasteful number, since it uses less digits than its factorization.

228412240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407899 (or 407893 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 228412240 is about 15113.3133362608. The cubic root of 228412240 is about 611.2794430192.

The spelling of 228412240 in words is "two hundred twenty-eight million, four hundred twelve thousand, two hundred forty".