1240516806 has 8 divisors (see below), whose sum is σ = 2481033624. Its totient is φ = 413505600.

The previous prime is 1240516747. The next prime is 1240516807. The reversal of 1240516806 is 6086150421.

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

1240516806 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240516807) 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, 103376395 + ... + 103376406.

It is an arithmetic number, because the mean of its divisors is an integer number (310129203).

Almost surely, 2^1240516806 is an apocalyptic number.

1240516806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1240516806 is a wasteful number, since it uses less digits than its factorization.

1240516806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206752806.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 1240516806 is about 35220.9711109731. The cubic root of 1240516806 is about 1074.4863039801.

The spelling of 1240516806 in words is "one billion, two hundred forty million, five hundred sixteen thousand, eight hundred six".