245316440 has 16 divisors (see below), whose sum is σ = 551962080. Its totient is φ = 98126560.

The previous prime is 245316373. The next prime is 245316451. The reversal of 245316440 is 44613542.

It is a congruent number.

It is an unprimeable number.

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, 3066416 + ... + 3066495.

It is an arithmetic number, because the mean of its divisors is an integer number (34497630).

Almost surely, 2^245316440 is an apocalyptic number.

245316440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245316440 is an abundant number, since it is smaller than the sum of its proper divisors (306645640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245316440 is a wasteful number, since it uses less digits than its factorization.

245316440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6132922 (or 6132918 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 245316440 is about 15662.5808856650. The cubic root of 245316440 is about 626.0017556525.

Adding to 245316440 its reverse (44613542), we get a palindrome (289929982).

The spelling of 245316440 in words is "two hundred forty-five million, three hundred sixteen thousand, four hundred forty".