225705348 has 72 divisors (see below), whose sum is σ = 649486656. Its totient is φ = 65419200.

The previous prime is 225705329. The next prime is 225705353. The reversal of 225705348 is 843507522.

It is a super-2 number, since 2×225705348² = 101885808231602208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 3283 + ... + 21498.

It is an arithmetic number, because the mean of its divisors is an integer number (9020648).

Almost surely, 2^225705348 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225705348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324743328).

225705348 is an abundant number, since it is smaller than the sum of its proper divisors (423781308).

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

225705348 is a wasteful number, since it uses less digits than its factorization.

225705348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24825 (or 24820 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 225705348 is about 15023.4932023148. The cubic root of 225705348 is about 608.8551023505.

The spelling of 225705348 in words is "two hundred twenty-five million, seven hundred five thousand, three hundred forty-eight".