1181140460 has 24 divisors (see below), whose sum is σ = 2504957616. Its totient is φ = 467777600.

The previous prime is 1181140447. The next prime is 1181140463. The reversal of 1181140460 is 640411811.

It is not an unprimeable number, because it can be changed into a prime (1181140463) 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, 290342 + ... + 294381.

It is an arithmetic number, because the mean of its divisors is an integer number (104373234).

Almost surely, 2^1181140460 is an apocalyptic number.

1181140460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1181140460 is an abundant number, since it is smaller than the sum of its proper divisors (1323817156).

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

1181140460 is a wasteful number, since it uses less digits than its factorization.

1181140460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584833 (or 584831 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 1181140460 is about 34367.7241027101. The cubic root of 1181140460 is about 1057.0621331974.

The spelling of 1181140460 in words is "one billion, one hundred eighty-one million, one hundred forty thousand, four hundred sixty".