1240040324 has 12 divisors (see below), whose sum is σ = 2170895244. Its totient is φ = 619784544.

The previous prime is 1240040323. The next prime is 1240040341. The reversal of 1240040324 is 4230400421.

It can be written as a sum of positive squares in 2 ways, for example, as 976562500 + 263477824 = 31250^2 + 16232^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1240040296 and 1240040305.

It is not an unprimeable number, because it can be changed into a prime (1240040323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46787 + ... + 68330.

It is an arithmetic number, because the mean of its divisors is an integer number (180907937).

Almost surely, 2^1240040324 is an apocalyptic number.

It is an amenable number.

1240040324 is a deficient number, since it is larger than the sum of its proper divisors (930854920).

1240040324 is a wasteful number, since it uses less digits than its factorization.

1240040324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117814 (or 117812 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1240040324 is about 35214.2062809884. The cubic root of 1240040324 is about 1074.3487164455.

Adding to 1240040324 its reverse (4230400421), we get a palindrome (5470440745).

The spelling of 1240040324 in words is "one billion, two hundred forty million, forty thousand, three hundred twenty-four".