1161463240 has 32 divisors (see below), whose sum is σ = 2986620480. Its totient is φ = 398215872.

The previous prime is 1161463207. The next prime is 1161463271. The reversal of 1161463240 is 423641611.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 1161463199 and 1161463208.

It is an unprimeable number.

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, 2073762 + ... + 2074321.

It is an arithmetic number, because the mean of its divisors is an integer number (93331890).

Almost surely, 2^1161463240 is an apocalyptic number.

1161463240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161463240 is an abundant number, since it is smaller than the sum of its proper divisors (1825157240).

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

1161463240 is a wasteful number, since it uses less digits than its factorization.

1161463240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4148101 (or 4148097 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1161463240 is about 34080.2470648321. The cubic root of 1161463240 is about 1051.1591854129.

The spelling of 1161463240 in words is "one billion, one hundred sixty-one million, four hundred sixty-three thousand, two hundred forty".