1115444272 has 20 divisors (see below), whose sum is σ = 2172377080. Its totient is φ = 554830848.

The previous prime is 1115444227. The next prime is 1115444287. The reversal of 1115444272 is 2724445111.

It is a happy number.

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, 177522 + ... + 183697.

It is an arithmetic number, because the mean of its divisors is an integer number (108618854).

Almost surely, 2^1115444272 is an apocalyptic number.

It is an amenable number.

1115444272 is a deficient number, since it is larger than the sum of its proper divisors (1056932808).

1115444272 is a wasteful number, since it uses less digits than its factorization.

1115444272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361420 (or 361414 counting only the distinct ones).

The product of its digits is 8960, while the sum is 31.

The square root of 1115444272 is about 33398.2674999767. The cubic root of 1115444272 is about 1037.0888360020.

Adding to 1115444272 its reverse (2724445111), we get a palindrome (3839889383).

The spelling of 1115444272 in words is "one billion, one hundred fifteen million, four hundred forty-four thousand, two hundred seventy-two".