1240874866 has 16 divisors (see below), whose sum is σ = 2320597440. Its totient is φ = 483457680.

The previous prime is 1240874839. The next prime is 1240874867. The reversal of 1240874866 is 6684780421.

It is not an unprimeable number, because it can be changed into a prime (1240874867) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4028661 + ... + 4028968.

It is an arithmetic number, because the mean of its divisors is an integer number (145037340).

Almost surely, 2^1240874866 is an apocalyptic number.

1240874866 is a deficient number, since it is larger than the sum of its proper divisors (1079722574).

1240874866 is a wasteful number, since it uses less digits than its factorization.

1240874866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8057649.

The product of its (nonzero) digits is 516096, while the sum is 46.

The square root of 1240874866 is about 35226.0537954509. The cubic root of 1240874866 is about 1074.5896731442.

The spelling of 1240874866 in words is "one billion, two hundred forty million, eight hundred seventy-four thousand, eight hundred sixty-six".