225322040 has 16 divisors (see below), whose sum is σ = 506974680. Its totient is φ = 90128800.

The previous prime is 225322037. The next prime is 225322051. The reversal of 225322040 is 40223522.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2816486 + ... + 2816565.

Almost surely, 2^225322040 is an apocalyptic number.

225322040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225322040 is an abundant number, since it is smaller than the sum of its proper divisors (281652640).

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

225322040 is a wasteful number, since it uses less digits than its factorization.

225322040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5633062 (or 5633058 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 225322040 is about 15010.7308283108. The cubic root of 225322040 is about 608.5102408282.

Adding to 225322040 its reverse (40223522), we get a palindrome (265545562).

The spelling of 225322040 in words is "two hundred twenty-five million, three hundred twenty-two thousand, forty".