245222456 has 8 divisors (see below), whose sum is σ = 459792120. Its totient is φ = 122611224.

The previous prime is 245222449. The next prime is 245222459. The reversal of 245222456 is 654222542.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245222459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15326396 + ... + 15326411.

It is an arithmetic number, because the mean of its divisors is an integer number (57474015).

Almost surely, 2^245222456 is an apocalyptic number.

It is an amenable number.

245222456 is a deficient number, since it is larger than the sum of its proper divisors (214569664).

245222456 is a wasteful number, since it uses less digits than its factorization.

245222456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30652813 (or 30652809 counting only the distinct ones).

The product of its digits is 38400, while the sum is 32.

The square root of 245222456 is about 15659.5803264328. The cubic root of 245222456 is about 625.9218022340.

Adding to 245222456 its reverse (654222542), we get a palindrome (899444998).

The spelling of 245222456 in words is "two hundred forty-five million, two hundred twenty-two thousand, four hundred fifty-six".