245365440 has 56 divisors (see below), whose sum is σ = 779038320. Its totient is φ = 65430528.

The previous prime is 245365429. The next prime is 245365447. The reversal of 245365440 is 44563542.

It is not an unprimeable number, because it can be changed into a prime (245365447) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 126835 + ... + 128754.

Almost surely, 2^245365440 is an apocalyptic number.

245365440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245365440 is an abundant number, since it is smaller than the sum of its proper divisors (533672880).

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

245365440 is a wasteful number, since it uses less digits than its factorization.

245365440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255609 (or 255599 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

The square root of 245365440 is about 15664.1450452937. The cubic root of 245365440 is about 626.0434324951.

The spelling of 245365440 in words is "two hundred forty-five million, three hundred sixty-five thousand, four hundred forty".