1149789418 has 8 divisors (see below), whose sum is σ = 1725351012. Its totient is φ = 574672416.

The previous prime is 1149789401. The next prime is 1149789439. The reversal of 1149789418 is 8149879411.

It can be written as a sum of positive squares in 2 ways, for example, as 1078268569 + 71520849 = 32837^2 + 8457^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 104605 + ... + 115072.

Almost surely, 2^1149789418 is an apocalyptic number.

1149789418 is a deficient number, since it is larger than the sum of its proper divisors (575561594).

1149789418 is a wasteful number, since it uses less digits than its factorization.

1149789418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222296.

The product of its digits is 580608, while the sum is 52.

The square root of 1149789418 is about 33908.5449112757. The cubic root of 1149789418 is about 1047.6256001196.

The spelling of 1149789418 in words is "one billion, one hundred forty-nine million, seven hundred eighty-nine thousand, four hundred eighteen".