1240288707 has 16 divisors (see below), whose sum is σ = 1989436160. Its totient is φ = 671434272.

The previous prime is 1240288667. The next prime is 1240288711. The reversal of 1240288707 is 7078820421.

It is not a de Polignac number, because 1240288707 - 2⁸ = 1240288451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240288717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1553848 + ... + 1554645.

It is an arithmetic number, because the mean of its divisors is an integer number (124339760).

Almost surely, 2^1240288707 is an apocalyptic number.

1240288707 is a deficient number, since it is larger than the sum of its proper divisors (749147453).

1240288707 is a wasteful number, since it uses less digits than its factorization.

1240288707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108522.

The product of its (nonzero) digits is 50176, while the sum is 39.

The square root of 1240288707 is about 35217.7328486659. The cubic root of 1240288707 is about 1074.4204431836.

The spelling of 1240288707 in words is "one billion, two hundred forty million, two hundred eighty-eight thousand, seven hundred seven".