1386168042 has 128 divisors (see below), whose sum is σ = 3387225600. Its totient is φ = 369847296.

The previous prime is 1386168031. The next prime is 1386168059. The reversal of 1386168042 is 2408616831.

It is a super-2 number, since 2×1386168042² = 3842923681324227528, which contains 22 as substring.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 7036288 + ... + 7036484.

It is an arithmetic number, because the mean of its divisors is an integer number (26462700).

Almost surely, 2^1386168042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1386168042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1693612800).

1386168042 is an abundant number, since it is smaller than the sum of its proper divisors (2001057558).

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

1386168042 is a wasteful number, since it uses less digits than its factorization.

1386168042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 1386168042 is about 37231.2777379450. The cubic root of 1386168042 is about 1114.9925373695.

The spelling of 1386168042 in words is "one billion, three hundred eighty-six million, one hundred sixty-eight thousand, forty-two".