240309807453 has 16 divisors (see below), whose sum is σ = 356029176960. Its totient is φ = 160199947008.

The previous prime is 240309807449. The next prime is 240309807473. The reversal of 240309807453 is 354708903042.

It is not a de Polignac number, because 240309807453 - 2² = 240309807449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 240309807399 and 240309807408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240309807403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536776 + ... + 876782.

It is an arithmetic number, because the mean of its divisors is an integer number (22251823560).

Almost surely, 2^240309807453 is an apocalyptic number.

It is an amenable number.

240309807453 is a deficient number, since it is larger than the sum of its proper divisors (115719369507).

240309807453 is a wasteful number, since it uses less digits than its factorization.

240309807453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366193 (or 366187 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 240309807453 in words is "two hundred forty billion, three hundred nine million, eight hundred seven thousand, four hundred fifty-three".