225828740 has 12 divisors (see below), whose sum is σ = 474240396. Its totient is φ = 90331488.

The previous prime is 225828709. The next prime is 225828761. The reversal of 225828740 is 47828522.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42172036 + 183656704 = 6494^2 + 13552^2 .

It is a junction number, because it is equal to n+sod(n) for n = 225828694 and 225828703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5645699 + ... + 5645738.

It is an arithmetic number, because the mean of its divisors is an integer number (39520033).

Almost surely, 2^225828740 is an apocalyptic number.

225828740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225828740 is an abundant number, since it is smaller than the sum of its proper divisors (248411656).

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

225828740 is a wasteful number, since it uses less digits than its factorization.

225828740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11291446 (or 11291444 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 225828740 is about 15027.5992759988. The cubic root of 225828740 is about 608.9660348309.

The spelling of 225828740 in words is "two hundred twenty-five million, eight hundred twenty-eight thousand, seven hundred forty".