1240260395 has 48 divisors (see below), whose sum is σ = 1745162496. Its totient is φ = 837144000.

The previous prime is 1240260379. The next prime is 1240260407. The reversal of 1240260395 is 5930620421.

1240260395 = 2294² + 2295² + ... + 2508².

It is a happy number.

It is not a de Polignac number, because 1240260395 - 2⁴ = 1240260379 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8213570 + ... + 8213720.

It is an arithmetic number, because the mean of its divisors is an integer number (36357552).

Almost surely, 2^1240260395 is an apocalyptic number.

1240260395 is a deficient number, since it is larger than the sum of its proper divisors (504902101).

1240260395 is a wasteful number, since it uses less digits than its factorization.

1240260395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1240260395 is about 35217.3308897764. The cubic root of 1240260395 is about 1074.4122678765.

The spelling of 1240260395 in words is "one billion, two hundred forty million, two hundred sixty thousand, three hundred ninety-five".