1163979340 has 24 divisors (see below), whose sum is σ = 2503976832. Its totient is φ = 454235520.

The previous prime is 1163979319. The next prime is 1163979343. The reversal of 1163979340 is 439793611.

It is not an unprimeable number, because it can be changed into a prime (1163979343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 708924 + ... + 710563.

It is an arithmetic number, because the mean of its divisors is an integer number (104332368).

Almost surely, 2^1163979340 is an apocalyptic number.

1163979340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163979340 is an abundant number, since it is smaller than the sum of its proper divisors (1339997492).

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

1163979340 is a wasteful number, since it uses less digits than its factorization.

1163979340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419537 (or 1419535 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 1163979340 is about 34117.1414394583. The cubic root of 1163979340 is about 1051.9176866977.

The spelling of 1163979340 in words is "one billion, one hundred sixty-three million, nine hundred seventy-nine thousand, three hundred forty".