1240140012 has 12 divisors (see below), whose sum is σ = 2893660056. Its totient is φ = 413380000.

The previous prime is 1240140007. The next prime is 1240140037. The reversal of 1240140012 is 2100410421.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×1240140012³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1240139973 and 1240140000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51672489 + ... + 51672512.

It is an arithmetic number, because the mean of its divisors is an integer number (241138338).

Almost surely, 2^1240140012 is an apocalyptic number.

1240140012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1240140012 is an abundant number, since it is smaller than the sum of its proper divisors (1653520044).

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

1240140012 is a wasteful number, since it uses less digits than its factorization.

1240140012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103345008 (or 103345006 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1240140012 is about 35215.6217040108. The cubic root of 1240140012 is about 1074.3775049731.

Adding to 1240140012 its reverse (2100410421), we get a palindrome (3340550433).

The spelling of 1240140012 in words is "one billion, two hundred forty million, one hundred forty thousand, twelve".