1180740640 has 24 divisors (see below), whose sum is σ = 2789500140. Its totient is φ = 472296192.

The previous prime is 1180740607. The next prime is 1180740733. The reversal of 1180740640 is 460470811.

It can be written as a sum of positive squares in 2 ways, for example, as 1177038864 + 3701776 = 34308^2 + 1924^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3689655 + ... + 3689974.

Almost surely, 2^1180740640 is an apocalyptic number.

1180740640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1180740640 is an abundant number, since it is smaller than the sum of its proper divisors (1608759500).

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

1180740640 is an equidigital number, since it uses as much as digits as its factorization.

1180740640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7379644 (or 7379636 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 1180740640 is about 34361.9068155421. The cubic root of 1180740640 is about 1056.9428467131.

The spelling of 1180740640 in words is "one billion, one hundred eighty million, seven hundred forty thousand, six hundred forty".