225020730 has 96 divisors (see below), whose sum is σ = 616351680. Its totient is φ = 52138240.

The previous prime is 225020699. The next prime is 225020779. The reversal of 225020730 is 37020522.

It is a junction number, because it is equal to n+sod(n) for n = 225020697 and 225020706.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 173926 + ... + 175214.

It is an arithmetic number, because the mean of its divisors is an integer number (6420330).

Almost surely, 2^225020730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225020730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308175840).

225020730 is an abundant number, since it is smaller than the sum of its proper divisors (391330950).

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

225020730 is a wasteful number, since it uses less digits than its factorization.

225020730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356 (or 1333 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 225020730 is about 15000.6909840847. The cubic root of 225020730 is about 608.2388781018.

The spelling of 225020730 in words is "two hundred twenty-five million, twenty thousand, seven hundred thirty".