1368338631 has 16 divisors (see below), whose sum is σ = 1991461248. Its totient is φ = 828816800.

The previous prime is 1368338611. The next prime is 1368338663.

1368338631 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 1368338631 - 2⁶ = 1368338567 is a prime.

It is a super-2 number, since 2×1368338631² = 3744701218173908322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368338611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50896 + ... + 72986.

It is an arithmetic number, because the mean of its divisors is an integer number (124466328).

Almost surely, 2^1368338631 is an apocalyptic number.

1368338631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1368338631 is a deficient number, since it is larger than the sum of its proper divisors (623122617).

1368338631 is a wasteful number, since it uses less digits than its factorization.

1368338631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23982.

The product of its digits is 186624, while the sum is 42.

The square root of 1368338631 is about 36991.0615013952. The cubic root of 1368338631 is about 1110.1914100558.

The spelling of 1368338631 in words is "one billion, three hundred sixty-eight million, three hundred thirty-eight thousand, six hundred thirty-one".