1242341240 has 32 divisors (see below), whose sum is σ = 3194592480. Its totient is φ = 425945472.

The previous prime is 1242341227. The next prime is 1242341327. The reversal of 1242341240 is 421432421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2218187 + ... + 2218746.

It is an arithmetic number, because the mean of its divisors is an integer number (99831015).

Almost surely, 2^1242341240 is an apocalyptic number.

1242341240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242341240 is an abundant number, since it is smaller than the sum of its proper divisors (1952251240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242341240 is a wasteful number, since it uses less digits than its factorization.

1242341240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4436951 (or 4436947 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1242341240 is about 35246.8614205577. The cubic root of 1242341240 is about 1075.0127966748.

Adding to 1242341240 its reverse (421432421), we get a palindrome (1663773661).

The spelling of 1242341240 in words is "one billion, two hundred forty-two million, three hundred forty-one thousand, two hundred forty".