1208631168 has 96 divisors (see below), whose sum is σ = 3487433040. Its totient is φ = 401780736.

The previous prime is 1208631161. The next prime is 1208631197. The reversal of 1208631168 is 8611368021.

1208631168 is a `hidden beast` number, since 1 + 2 + 0 + 8 + 631 + 16 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1208631168² = 2921578600522088448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1208631161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 497605 + ... + 500027.

Almost surely, 2^1208631168 is an apocalyptic number.

1208631168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1208631168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1743716520).

1208631168 is an abundant number, since it is smaller than the sum of its proper divisors (2278801872).

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

1208631168 is a wasteful number, since it uses less digits than its factorization.

1208631168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876 (or 2861 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1208631168 is about 34765.3731175145. The cubic root of 1208631168 is about 1065.2002585793.

Adding to 1208631168 its reverse (8611368021), we get a palindrome (9819999189).

The spelling of 1208631168 in words is "one billion, two hundred eight million, six hundred thirty-one thousand, one hundred sixty-eight".