1168204040 has 64 divisors (see below), whose sum is σ = 2748038400. Its totient is φ = 446102272.

The previous prime is 1168204033. The next prime is 1168204073. The reversal of 1168204040 is 404028611.

It is a Cunningham number, because it is equal to 34179²-1.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 682706 + ... + 684414.

It is an arithmetic number, because the mean of its divisors is an integer number (42938100).

Almost surely, 2^1168204040 is an apocalyptic number.

1168204040 is a gapful number since it is divisible by the number (10) 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 1168204040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1374019200).

1168204040 is an abundant number, since it is smaller than the sum of its proper divisors (1579834360).

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

1168204040 is a wasteful number, since it uses less digits than its factorization.

1168204040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486 (or 2482 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 1168204040 is about 34178.9999853711. Note that the first 4 decimals coincide. The cubic root of 1168204040 is about 1053.1888063023.

The spelling of 1168204040 in words is "one billion, one hundred sixty-eight million, two hundred four thousand, forty".