1169685040 has 40 divisors (see below), whose sum is σ = 2746462608. Its totient is φ = 463238400.

The previous prime is 1169685029. The next prime is 1169685061. The reversal of 1169685040 is 405869611.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1169684984 and 1169685002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64302 + ... + 80461.

Almost surely, 2^1169685040 is an apocalyptic number.

1169685040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1169685040 is an abundant number, since it is smaller than the sum of its proper divisors (1576777568).

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

1169685040 is a wasteful number, since it uses less digits than its factorization.

1169685040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144877 (or 144871 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 1169685040 is about 34200.6584731932. The cubic root of 1169685040 is about 1053.6336811970.

The spelling of 1169685040 in words is "one billion, one hundred sixty-nine million, six hundred eighty-five thousand, forty".