1178740940 has 96 divisors (see below), whose sum is σ = 2775548160. Its totient is φ = 417666816.

The previous prime is 1178740921. The next prime is 1178740957. The reversal of 1178740940 is 490478711.

It is a super-3 number, since 3×1178740940³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 658727 + ... + 660513.

It is an arithmetic number, because the mean of its divisors is an integer number (28911960).

Almost surely, 2^1178740940 is an apocalyptic number.

1178740940 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 1178740940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1387774080).

1178740940 is an abundant number, since it is smaller than the sum of its proper divisors (1596807220).

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

1178740940 is a wasteful number, since it uses less digits than its factorization.

1178740940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911 (or 1909 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 1178740940 is about 34332.7968566501. The cubic root of 1178740940 is about 1056.3458307833.

The spelling of 1178740940 in words is "one billion, one hundred seventy-eight million, seven hundred forty thousand, nine hundred forty".