12357727240 has 32 divisors (see below), whose sum is σ = 28139892480. Its totient is φ = 4883534272.

The previous prime is 12357727219. The next prime is 12357727241. The reversal of 12357727240 is 4272775321.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 12357727193 and 12357727202.

It is not an unprimeable number, because it can be changed into a prime (12357727241) 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, 1857784 + ... + 1864423.

It is an arithmetic number, because the mean of its divisors is an integer number (879371640).

Almost surely, 2^12357727240 is an apocalyptic number.

12357727240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12357727240 is an abundant number, since it is smaller than the sum of its proper divisors (15782165240).

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

12357727240 is a wasteful number, since it uses less digits than its factorization.

12357727240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722301 (or 3722297 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 40.

The spelling of 12357727240 in words is "twelve billion, three hundred fifty-seven million, seven hundred twenty-seven thousand, two hundred forty".