24257312340 has 24 divisors (see below), whose sum is σ = 67920474720. Its totient is φ = 6468616608.

The previous prime is 24257312327. The next prime is 24257312347. The reversal of 24257312340 is 4321375242.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24257312347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202144210 + ... + 202144329.

It is an arithmetic number, because the mean of its divisors is an integer number (2830019780).

Almost surely, 2^24257312340 is an apocalyptic number.

24257312340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24257312340 is an abundant number, since it is smaller than the sum of its proper divisors (43663162380).

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

24257312340 is a wasteful number, since it uses less digits than its factorization.

24257312340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404288551 (or 404288549 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 33.

Adding to 24257312340 its reverse (4321375242), we get a palindrome (28578687582).

The spelling of 24257312340 in words is "twenty-four billion, two hundred fifty-seven million, three hundred twelve thousand, three hundred forty".