225933140 has 24 divisors (see below), whose sum is σ = 495089280. Its totient is φ = 86443808.

The previous prime is 225933121. The next prime is 225933151. The reversal of 225933140 is 41339522.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245120 + ... + 246039.

It is an arithmetic number, because the mean of its divisors is an integer number (20628720).

Almost surely, 2^225933140 is an apocalyptic number.

225933140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225933140 is an abundant number, since it is smaller than the sum of its proper divisors (269156140).

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

225933140 is a wasteful number, since it uses less digits than its factorization.

225933140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491191 (or 491189 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 225933140 is about 15031.0724833593. The cubic root of 225933140 is about 609.0598614766.

The spelling of 225933140 in words is "two hundred twenty-five million, nine hundred thirty-three thousand, one hundred forty".