1087439272 has 16 divisors (see below), whose sum is σ = 2158887060. Its totient is φ = 511736064.

The previous prime is 1087439251. The next prime is 1087439273. The reversal of 1087439272 is 2729347801.

It can be written as a sum of positive squares in 2 ways, for example, as 1068897636 + 18541636 = 32694^2 + 4306^2 .

It is not an unprimeable number, because it can be changed into a prime (1087439273) 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, 3997803 + ... + 3998074.

Almost surely, 2^1087439272 is an apocalyptic number.

It is an amenable number.

1087439272 is a deficient number, since it is larger than the sum of its proper divisors (1071447788).

1087439272 is a wasteful number, since it uses less digits than its factorization.

1087439272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7995900 (or 7995896 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 1087439272 is about 32976.3441272680. The cubic root of 1087439272 is about 1028.3359160008.

The spelling of 1087439272 in words is "one billion, eighty-seven million, four hundred thirty-nine thousand, two hundred seventy-two".