245315330 has 48 divisors (see below), whose sum is σ = 480660480. Its totient is φ = 90103104.

The previous prime is 245315311. The next prime is 245315339. The reversal of 245315330 is 33513542.

It is a super-2 number, since 2×245315330² = 120359222266017800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 245315330.

It is not an unprimeable number, because it can be changed into a prime (245315339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 640319 + ... + 640701.

It is an arithmetic number, because the mean of its divisors is an integer number (10013760).

Almost surely, 2^245315330 is an apocalyptic number.

245315330 is a deficient number, since it is larger than the sum of its proper divisors (235345150).

245315330 is a wasteful number, since it uses less digits than its factorization.

245315330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795 (or 782 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 245315330 is about 15662.5454508519. The cubic root of 245315330 is about 626.0008114801. Note that the first 3 decimals are identical.

Adding to 245315330 its reverse (33513542), we get a palindrome (278828872).

The spelling of 245315330 in words is "two hundred forty-five million, three hundred fifteen thousand, three hundred thirty".