1171013640 has 32 divisors (see below), whose sum is σ = 3513041280. Its totient is φ = 312270272.

The previous prime is 1171013633. The next prime is 1171013647. The reversal of 1171013640 is 463101711.

It is an interprime number because it is at equal distance from previous prime (1171013633) and next prime (1171013647).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1171013640.

It is not an unprimeable number, because it can be changed into a prime (1171013647) 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, 4879104 + ... + 4879343.

It is an arithmetic number, because the mean of its divisors is an integer number (109782540).

Almost surely, 2^1171013640 is an apocalyptic number.

1171013640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1171013640 is an abundant number, since it is smaller than the sum of its proper divisors (2342027640).

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

1171013640 is a wasteful number, since it uses less digits than its factorization.

1171013640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9758461 (or 9758457 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 1171013640 is about 34220.0765633276. The cubic root of 1171013640 is about 1054.0324575002.

The spelling of 1171013640 in words is "one billion, one hundred seventy-one million, thirteen thousand, six hundred forty".