1240005706 has 8 divisors (see below), whose sum is σ = 1903264704. Its totient is φ = 605584140.

The previous prime is 1240005703. The next prime is 1240005707. The reversal of 1240005706 is 6075000421.

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

It is a super-2 number, since 2×1240005706² = 3075228301825116872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1240005703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7209250 + ... + 7209421.

It is an arithmetic number, because the mean of its divisors is an integer number (237908088).

Almost surely, 2^1240005706 is an apocalyptic number.

1240005706 is a deficient number, since it is larger than the sum of its proper divisors (663258998).

1240005706 is a wasteful number, since it uses less digits than its factorization.

1240005706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14418716.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 1240005706 is about 35213.7147429805. The cubic root of 1240005706 is about 1074.3387188809.

The spelling of 1240005706 in words is "one billion, two hundred forty million, five thousand, seven hundred six".