227565540 has 144 divisors (see below), whose sum is σ = 725018112. Its totient is φ = 57708288.

The previous prime is 227565521. The next prime is 227565551. The reversal of 227565540 is 45565722.

227565540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 227565495 and 227565504.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 312657 + ... + 313383.

It is an arithmetic number, because the mean of its divisors is an integer number (5034848).

Almost surely, 2^227565540 is an apocalyptic number.

227565540 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 227565540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362509056).

227565540 is an abundant number, since it is smaller than the sum of its proper divisors (497452572).

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

227565540 is a wasteful number, since it uses less digits than its factorization.

227565540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 227565540 is about 15085.2756023879. The cubic root of 227565540 is about 610.5231917331.

The spelling of 227565540 in words is "two hundred twenty-seven million, five hundred sixty-five thousand, five hundred forty".