1168811372 has 24 divisors (see below), whose sum is σ = 2183408640. Its totient is φ = 545847120.

The previous prime is 1168811363. The next prime is 1168811377. The reversal of 1168811372 is 2731188611.

It is a happy number.

It is a super-2 number, since 2×1168811372² = 2732240046633044768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (1168811377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102908 + ... + 113699.

It is an arithmetic number, because the mean of its divisors is an integer number (90975360).

Almost surely, 2^1168811372 is an apocalyptic number.

It is an amenable number.

1168811372 is a deficient number, since it is larger than the sum of its proper divisors (1014597268).

1168811372 is a wasteful number, since it uses less digits than its factorization.

1168811372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216701 (or 216699 counting only the distinct ones).

The product of its digits is 16128, while the sum is 38.

The square root of 1168811372 is about 34187.8834091846. The cubic root of 1168811372 is about 1053.3712871101.

Adding to 1168811372 its reverse (2731188611), we get a palindrome (3899999983).

The spelling of 1168811372 in words is "one billion, one hundred sixty-eight million, eight hundred eleven thousand, three hundred seventy-two".