3012140240 has 80 divisors (see below), whose sum is σ = 7487520768. Its totient is φ = 1122920448.

The previous prime is 3012140233. The next prime is 3012140273. The reversal of 3012140240 is 420412103.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×3012140240³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129329 + ... + 150831.

Almost surely, 2^3012140240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3012140240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3743760384).

3012140240 is an abundant number, since it is smaller than the sum of its proper divisors (4475380528).

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

3012140240 is a wasteful number, since it uses less digits than its factorization.

3012140240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21636 (or 21630 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 3012140240 is about 54882.9685786037. The cubic root of 3012140240 is about 1444.1924247932.

Adding to 3012140240 its reverse (420412103), we get a palindrome (3432552343).

The spelling of 3012140240 in words is "three billion, twelve million, one hundred forty thousand, two hundred forty".