1361393806 has 16 divisors (see below), whose sum is σ = 2113387200. Its totient is φ = 656951008.

The previous prime is 1361393771. The next prime is 1361393819. The reversal of 1361393806 is 6083931631.

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 7 ways as a sum of consecutive naturals, for example, 243915 + ... + 249433.

It is an arithmetic number, because the mean of its divisors is an integer number (132086700).

Almost surely, 2^1361393806 is an apocalyptic number.

1361393806 is a deficient number, since it is larger than the sum of its proper divisors (751993394).

1361393806 is a wasteful number, since it uses less digits than its factorization.

1361393806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9803.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 1361393806 is about 36897.0704257127. The cubic root of 1361393806 is about 1108.3100127580.

The spelling of 1361393806 in words is "one billion, three hundred sixty-one million, three hundred ninety-three thousand, eight hundred six".