245320424 has 8 divisors (see below), whose sum is σ = 459975810. Its totient is φ = 122660208.

The previous prime is 245320423. The next prime is 245320451. The reversal of 245320424 is 424023542.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 203975524 + 41344900 = 14282^2 + 6430^2 .

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

It is a super-2 number, since 2×245320424² = 120364220863079552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245320393 and 245320402.

It is not an unprimeable number, because it can be changed into a prime (245320423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15332519 + ... + 15332534.

Almost surely, 2^245320424 is an apocalyptic number.

It is an amenable number.

245320424 is a deficient number, since it is larger than the sum of its proper divisors (214655386).

245320424 is a wasteful number, since it uses less digits than its factorization.

245320424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30665059 (or 30665055 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 245320424 is about 15662.7080672532. The cubic root of 245320424 is about 626.0051444422.

Adding to 245320424 its reverse (424023542), we get a palindrome (669343966).

The spelling of 245320424 in words is "two hundred forty-five million, three hundred twenty thousand, four hundred twenty-four".