225438345 has 24 divisors (see below), whose sum is σ = 426284352. Its totient is φ = 109303200.

The previous prime is 225438289. The next prime is 225438359. The reversal of 225438345 is 543834522.

It is not a de Polignac number, because 225438345 - 2¹⁰ = 225437321 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 227221 + ... + 228210.

It is an arithmetic number, because the mean of its divisors is an integer number (17761848).

Almost surely, 2^225438345 is an apocalyptic number.

It is an amenable number.

225438345 is a deficient number, since it is larger than the sum of its proper divisors (200846007).

225438345 is a wasteful number, since it uses less digits than its factorization.

225438345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455453 (or 455450 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 225438345 is about 15014.6043903927. The cubic root of 225438345 is about 608.6149215333.

The spelling of 225438345 in words is "two hundred twenty-five million, four hundred thirty-eight thousand, three hundred forty-five".