228077240 has 16 divisors (see below), whose sum is σ = 513173880. Its totient is φ = 91230880.

The previous prime is 228077233. The next prime is 228077243. The reversal of 228077240 is 42770822.

It is a happy number.

228077240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 228077197 and 228077206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228077243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2850926 + ... + 2851005.

Almost surely, 2^228077240 is an apocalyptic number.

228077240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228077240 is an abundant number, since it is smaller than the sum of its proper divisors (285096640).

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

228077240 is a wasteful number, since it uses less digits than its factorization.

228077240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5701942 (or 5701938 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 228077240 is about 15102.2263259428. The cubic root of 228077240 is about 610.9804531932.

The spelling of 228077240 in words is "two hundred twenty-eight million, seventy-seven thousand, two hundred forty".