12045915240 has 32 divisors (see below), whose sum is σ = 36137746080. Its totient is φ = 3212244032.

The previous prime is 12045915239. The next prime is 12045915257. The reversal of 12045915240 is 4251954021.

It is a super-3 number, since 3×12045915240³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50191194 + ... + 50191433.

It is an arithmetic number, because the mean of its divisors is an integer number (1129304565).

Almost surely, 2^12045915240 is an apocalyptic number.

12045915240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12045915240 is an abundant number, since it is smaller than the sum of its proper divisors (24091830840).

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

12045915240 is a wasteful number, since it uses less digits than its factorization.

12045915240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100382641 (or 100382637 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 12045915240 in words is "twelve billion, forty-five million, nine hundred fifteen thousand, two hundred forty".