1178788940 has 48 divisors (see below), whose sum is σ = 2841314112. Its totient is φ = 402410496.

The previous prime is 1178788903. The next prime is 1178788951. The reversal of 1178788940 is 498878711.

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, 14552 + ... + 50688.

It is an arithmetic number, because the mean of its divisors is an integer number (59194044).

Almost surely, 2^1178788940 is an apocalyptic number.

1178788940 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 1178788940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1420657056).

1178788940 is an abundant number, since it is smaller than the sum of its proper divisors (1662525172).

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

1178788940 is a wasteful number, since it uses less digits than its factorization.

1178788940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36386 (or 36384 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 53.

The square root of 1178788940 is about 34333.4958895828. The cubic root of 1178788940 is about 1056.3601692213.

The spelling of 1178788940 in words is "one billion, one hundred seventy-eight million, seven hundred eighty-eight thousand, nine hundred forty".