1226739868 has 12 divisors (see below), whose sum is σ = 2240133840. Its totient is φ = 586701632.

The previous prime is 1226739841. The next prime is 1226739881. The reversal of 1226739868 is 8689376221.

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 3 ways as a sum of consecutive naturals, for example, 6666973 + ... + 6667156.

It is an arithmetic number, because the mean of its divisors is an integer number (186677820).

Almost surely, 2^1226739868 is an apocalyptic number.

It is an amenable number.

1226739868 is a deficient number, since it is larger than the sum of its proper divisors (1013393972).

1226739868 is a wasteful number, since it uses less digits than its factorization.

1226739868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13334156 (or 13334154 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 52.

The square root of 1226739868 is about 35024.8464379218. The cubic root of 1226739868 is about 1070.4938088131.

The spelling of 1226739868 in words is "one billion, two hundred twenty-six million, seven hundred thirty-nine thousand, eight hundred sixty-eight".