225342460 has 24 divisors (see below), whose sum is σ = 540822240. Its totient is φ = 77260224.

The previous prime is 225342457. The next prime is 225342493. The reversal of 225342460 is 64243522.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804655 + ... + 804934.

It is an arithmetic number, because the mean of its divisors is an integer number (22534260).

Almost surely, 2^225342460 is an apocalyptic number.

225342460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225342460 is an abundant number, since it is smaller than the sum of its proper divisors (315479780).

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

225342460 is a wasteful number, since it uses less digits than its factorization.

225342460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609605 (or 1609603 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 225342460 is about 15011.4109929746. The cubic root of 225342460 is about 608.5286225243.

Adding to 225342460 its reverse (64243522), we get a palindrome (289585982).

The spelling of 225342460 in words is "two hundred twenty-five million, three hundred forty-two thousand, four hundred sixty".