225740328 has 64 divisors (see below), whose sum is σ = 617310720. Its totient is φ = 68222400.

The previous prime is 225740299. The next prime is 225740351. The reversal of 225740328 is 823047522.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122373 + ... + 124203.

It is an arithmetic number, because the mean of its divisors is an integer number (9645480).

Almost surely, 2^225740328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225740328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308655360).

225740328 is an abundant number, since it is smaller than the sum of its proper divisors (391570392).

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

225740328 is a wasteful number, since it uses less digits than its factorization.

225740328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318 (or 2314 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 225740328 is about 15024.6573338629. The cubic root of 225740328 is about 608.8865543468.

The spelling of 225740328 in words is "two hundred twenty-five million, seven hundred forty thousand, three hundred twenty-eight".