12042002340 has 72 divisors (see below), whose sum is σ = 37786989240. Its totient is φ = 3100468224.

The previous prime is 12042002317. The next prime is 12042002341. The reversal of 12042002340 is 4320024021.

12042002340 is a `hidden beast` number, since 12 + 0 + 420 + 0 + 234 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 451584 + 12041550756 = 672^2 + 109734^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12042002341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1148229 + ... + 1158668.

It is an arithmetic number, because the mean of its divisors is an integer number (524819295).

Almost surely, 2^12042002340 is an apocalyptic number.

12042002340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12042002340 is an abundant number, since it is smaller than the sum of its proper divisors (25744986900).

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

12042002340 is a wasteful number, since it uses less digits than its factorization.

12042002340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306941 (or 2306936 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 12042002340 its reverse (4320024021), we get a palindrome (16362026361).

The spelling of 12042002340 in words is "twelve billion, forty-two million, two thousand, three hundred forty".