225783390 has 32 divisors (see below), whose sum is σ = 619292160. Its totient is φ = 51607584.

The previous prime is 225783359. The next prime is 225783391. The reversal of 225783390 is 93387522.

It is a super-3 number, since 3×225783390³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225783391) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 537370 + ... + 537789.

It is an arithmetic number, because the mean of its divisors is an integer number (19352880).

Almost surely, 2^225783390 is an apocalyptic number.

225783390 is an abundant number, since it is smaller than the sum of its proper divisors (393508770).

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

225783390 is a wasteful number, since it uses less digits than its factorization.

225783390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075176.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 225783390 is about 15026.0903098577. The cubic root of 225783390 is about 608.9252687493.

The spelling of 225783390 in words is "two hundred twenty-five million, seven hundred eighty-three thousand, three hundred ninety".