1368019892 has 12 divisors (see below), whose sum is σ = 2394356580. Its totient is φ = 683918016.

The previous prime is 1368019889. The next prime is 1368019943. The reversal of 1368019892 is 2989108631.

It can be written as a sum of positive squares in 2 ways, for example, as 1294128676 + 73891216 = 35974^2 + 8596^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19034 + ... + 55662.

It is an arithmetic number, because the mean of its divisors is an integer number (199529715).

Almost surely, 2^1368019892 is an apocalyptic number.

It is an amenable number.

1368019892 is a deficient number, since it is larger than the sum of its proper divisors (1026336688).

1368019892 is a wasteful number, since it uses less digits than its factorization.

1368019892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45970 (or 45968 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 1368019892 is about 36986.7529258787. The cubic root of 1368019892 is about 1110.1052011863.

The spelling of 1368019892 in words is "one billion, three hundred sixty-eight million, nineteen thousand, eight hundred ninety-two".