1240535012 has 12 divisors (see below), whose sum is σ = 2171519280. Its totient is φ = 620100936.

The previous prime is 1240534957. The next prime is 1240535047. The reversal of 1240535012 is 2105350421.

It is a super-3 number, since 3×1240535012³ (a number of 28 digits) contains 333 as substring.

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, 24062 + ... + 55317.

It is an arithmetic number, because the mean of its divisors is an integer number (180959940).

Almost surely, 2^1240535012 is an apocalyptic number.

It is an amenable number.

1240535012 is a deficient number, since it is larger than the sum of its proper divisors (930984268).

1240535012 is a wasteful number, since it uses less digits than its factorization.

1240535012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83290 (or 83288 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1240535012 is about 35221.2295640002. The cubic root of 1240535012 is about 1074.4915603920.

Adding to 1240535012 its reverse (2105350421), we get a palindrome (3345885433).

The spelling of 1240535012 in words is "one billion, two hundred forty million, five hundred thirty-five thousand, twelve".