1240031272 has 16 divisors (see below), whose sum is σ = 2461827060. Its totient is φ = 583544064.

The previous prime is 1240031267. The next prime is 1240031297. The reversal of 1240031272 is 2721300421.

It can be written as a sum of positive squares in 2 ways, for example, as 1240025796 + 5476 = 35214^2 + 74^2 .

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, 4558803 + ... + 4559074.

Almost surely, 2^1240031272 is an apocalyptic number.

It is an amenable number.

1240031272 is a deficient number, since it is larger than the sum of its proper divisors (1221795788).

1240031272 is a wasteful number, since it uses less digits than its factorization.

1240031272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9117900 (or 9117896 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1240031272 is about 35214.0777530805. The cubic root of 1240031272 is about 1074.3461022756.

Adding to 1240031272 its reverse (2721300421), we get a palindrome (3961331693).

The spelling of 1240031272 in words is "one billion, two hundred forty million, thirty-one thousand, two hundred seventy-two".