225449300 has 18 divisors (see below), whose sum is σ = 489225198. Its totient is φ = 90179680.

The previous prime is 225449261. The next prime is 225449309. The reversal of 225449300 is 3944522.

It can be written as a sum of positive squares in 3 ways, for example, as 12931216 + 212518084 = 3596^2 + 14578^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225449309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1127147 + ... + 1127346.

Almost surely, 2^225449300 is an apocalyptic number.

225449300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225449300 is an abundant number, since it is smaller than the sum of its proper divisors (263775898).

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

225449300 is a wasteful number, since it uses less digits than its factorization.

225449300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2254507 (or 2254500 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 225449300 is about 15014.9691974376. The cubic root of 225449300 is about 608.6247797623.

The spelling of 225449300 in words is "two hundred twenty-five million, four hundred forty-nine thousand, three hundred".