225720046 has 8 divisors (see below), whose sum is σ = 338839200. Its totient is φ = 112773648.

The previous prime is 225720037. The next prime is 225720049. The reversal of 225720046 is 640027522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 225719996 and 225720023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225720049) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 39871 + ... + 45178.

It is an arithmetic number, because the mean of its divisors is an integer number (42354900).

Almost surely, 2^225720046 is an apocalyptic number.

225720046 is a deficient number, since it is larger than the sum of its proper divisors (113119154).

225720046 is a wasteful number, since it uses less digits than its factorization.

225720046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86378.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 225720046 is about 15023.9823615445. The cubic root of 225720046 is about 608.8683183393.

Adding to 225720046 its reverse (640027522), we get a palindrome (865747568).

The spelling of 225720046 in words is "two hundred twenty-five million, seven hundred twenty thousand, forty-six".