1241689686 has 32 divisors (see below), whose sum is σ = 2567463936. Its totient is φ = 399924000.

The previous prime is 1241689679. The next prime is 1241689693. The reversal of 1241689686 is 6869861421.

It is an interprime number because it is at equal distance from previous prime (1241689679) and next prime (1241689693).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 123696 + ... + 133356.

It is an arithmetic number, because the mean of its divisors is an integer number (80233248).

Almost surely, 2^1241689686 is an apocalyptic number.

1241689686 is an abundant number, since it is smaller than the sum of its proper divisors (1325774250).

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

1241689686 is a wasteful number, since it uses less digits than its factorization.

1241689686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10388.

The product of its digits is 995328, while the sum is 51.

The square root of 1241689686 is about 35237.6174847279. The cubic root of 1241689686 is about 1074.8248313104.

The spelling of 1241689686 in words is "one billion, two hundred forty-one million, six hundred eighty-nine thousand, six hundred eighty-six".