1163440304 has 20 divisors (see below), whose sum is σ = 2427563376. Its totient is φ = 536972352.

The previous prime is 1163440277. The next prime is 1163440309. The reversal of 1163440304 is 4030443611.

It is a super-2 number, since 2×1163440304² = 2707186681943224832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1163440309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2796524 + ... + 2796939.

Almost surely, 2^1163440304 is an apocalyptic number.

It is an amenable number.

1163440304 is an abundant number, since it is smaller than the sum of its proper divisors (1264123072).

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

1163440304 is a wasteful number, since it uses less digits than its factorization.

1163440304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5593484 (or 5593478 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1163440304 is about 34109.2407420628. The cubic root of 1163440304 is about 1051.7552814516.

Adding to 1163440304 its reverse (4030443611), we get a palindrome (5193883915).

The spelling of 1163440304 in words is "one billion, one hundred sixty-three million, four hundred forty thousand, three hundred four".