1240331242 has 8 divisors (see below), whose sum is σ = 1910780676. Its totient is φ = 603404352.

The previous prime is 1240331219. The next prime is 1240331249. The reversal of 1240331242 is 2421330421.

It can be written as a sum of positive squares in 2 ways, for example, as 1077743241 + 162588001 = 32829^2 + 12751^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1240331249) 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, 8380543 + ... + 8380690.

Almost surely, 2^1240331242 is an apocalyptic number.

1240331242 is a deficient number, since it is larger than the sum of its proper divisors (670449434).

1240331242 is a wasteful number, since it uses less digits than its factorization.

1240331242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16761272.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1240331242 is about 35218.3367296072. The cubic root of 1240331242 is about 1074.4327252570.

Adding to 1240331242 its reverse (2421330421), we get a palindrome (3661661663).

The spelling of 1240331242 in words is "one billion, two hundred forty million, three hundred thirty-one thousand, two hundred forty-two".