245217441 has 32 divisors (see below), whose sum is σ = 380298240. Its totient is φ = 137657664.

The previous prime is 245217437. The next prime is 245217449. The reversal of 245217441 is 144712542.

It is not a de Polignac number, because 245217441 - 2² = 245217437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245217399 and 245217408.

It is not an unprimeable number, because it can be changed into a prime (245217449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 468606 + ... + 469128.

It is an arithmetic number, because the mean of its divisors is an integer number (11884320).

Almost surely, 2^245217441 is an apocalyptic number.

245217441 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

245217441 is a deficient number, since it is larger than the sum of its proper divisors (135080799).

245217441 is a wasteful number, since it uses less digits than its factorization.

245217441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885.

The product of its digits is 8960, while the sum is 30.

The square root of 245217441 is about 15659.4201999946. The cubic root of 245217441 is about 625.9175353338.

Adding to 245217441 its reverse (144712542), we get a palindrome (389929983).

The spelling of 245217441 in words is "two hundred forty-five million, two hundred seventeen thousand, four hundred forty-one".