1240000001 has 8 divisors (see below), whose sum is σ = 1245211200. Its totient is φ = 1234799280.

The previous prime is 1239999979. The next prime is 1240000033. The reversal of 1240000001 is 1000000421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1240000001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240000301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306371 + ... + 310391.

It is an arithmetic number, because the mean of its divisors is an integer number (155651400).

Almost surely, 2^1240000001 is an apocalyptic number.

It is an amenable number.

1240000001 is a deficient number, since it is larger than the sum of its proper divisors (5211199).

1240000001 is an equidigital number, since it uses as much as digits as its factorization.

1240000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5239.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1240000001 is about 35213.6337375171. The cubic root of 1240000001 is about 1074.3370712778.

Adding to 1240000001 its reverse (1000000421), we get a palindrome (2240000422).

The spelling of 1240000001 in words is "one billion, two hundred forty million, one", and thus it is an aban number.