1240415013 has 16 divisors (see below), whose sum is σ = 1752705216. Its totient is φ = 777619200.

The previous prime is 1240415009. The next prime is 1240415039. The reversal of 1240415013 is 3105140421.

It is not a de Polignac number, because 1240415013 - 2² = 1240415009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240415003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51838 + ... + 71888.

It is an arithmetic number, because the mean of its divisors is an integer number (109544076).

Almost surely, 2^1240415013 is an apocalyptic number.

It is an amenable number.

1240415013 is a deficient number, since it is larger than the sum of its proper divisors (512290203).

1240415013 is a wasteful number, since it uses less digits than its factorization.

1240415013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21284.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1240415013 is about 35219.5260189572. The cubic root of 1240415013 is about 1074.4569134939.

Adding to 1240415013 its reverse (3105140421), we get a palindrome (4345555434).

The spelling of 1240415013 in words is "one billion, two hundred forty million, four hundred fifteen thousand, thirteen".