225342740 has 48 divisors (see below), whose sum is σ = 543013632. Its totient is φ = 76947456.

The previous prime is 225342727. The next prime is 225342743. The reversal of 225342740 is 47243522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225342743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32849 + ... + 39111.

It is an arithmetic number, because the mean of its divisors is an integer number (11312784).

Almost surely, 2^225342740 is an apocalyptic number.

225342740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225342740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271506816).

225342740 is an abundant number, since it is smaller than the sum of its proper divisors (317670892).

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

225342740 is a wasteful number, since it uses less digits than its factorization.

225342740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6536 (or 6534 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 225342740 is about 15011.4203192103. The cubic root of 225342740 is about 608.5288745673.

The spelling of 225342740 in words is "two hundred twenty-five million, three hundred forty-two thousand, seven hundred forty".