1168397650 has 108 divisors (see below), whose sum is σ = 2590376058. Its totient is φ = 390929280.

The previous prime is 1168397639. The next prime is 1168397651. The reversal of 1168397650 is 567938611.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 908962201 + 259435449 = 30149^2 + 16107^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1168397650.

It is not an unprimeable number, because it can be changed into a prime (1168397651) by changing a digit.

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 53 ways as a sum of consecutive naturals, for example, 8528382 + ... + 8528518.

Almost surely, 2^1168397650 is an apocalyptic number.

1168397650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1168397650 is an abundant number, since it is smaller than the sum of its proper divisors (1421978408).

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

1168397650 is a wasteful number, since it uses less digits than its factorization.

1168397650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 1168397650 is about 34181.8321627147. The cubic root of 1168397650 is about 1053.2469858138.

The spelling of 1168397650 in words is "one billion, one hundred sixty-eight million, three hundred ninety-seven thousand, six hundred fifty".