245443453140 has 48 divisors (see below), whose sum is σ = 687367074240. Its totient is φ = 65439644160.

The previous prime is 245443453133. The next prime is 245443453159. The reversal of 245443453140 is 41354344542.

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 15 ways as a sum of consecutive naturals, for example, 39210 + ... + 701729.

It is an arithmetic number, because the mean of its divisors is an integer number (14320147380).

Almost surely, 2^245443453140 is an apocalyptic number.

245443453140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245443453140 is an abundant number, since it is smaller than the sum of its proper divisors (441923621100).

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

245443453140 is a wasteful number, since it uses less digits than its factorization.

245443453140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746472 (or 746470 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 39.

Adding to 245443453140 its reverse (41354344542), we get a palindrome (286797797682).

The spelling of 245443453140 in words is "two hundred forty-five billion, four hundred forty-three million, four hundred fifty-three thousand, one hundred forty".