1242030340 has 24 divisors (see below), whose sum is σ = 2609268480. Its totient is φ = 496620768.

The previous prime is 1242030331. The next prime is 1242030367. The reversal of 1242030340 is 430302421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48781 + ... + 69739.

It is an arithmetic number, because the mean of its divisors is an integer number (108719520).

Almost surely, 2^1242030340 is an apocalyptic number.

1242030340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242030340 is an abundant number, since it is smaller than the sum of its proper divisors (1367238140).

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

1242030340 is a wasteful number, since it uses less digits than its factorization.

1242030340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23931 (or 23929 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1242030340 is about 35242.4508228358. The cubic root of 1242030340 is about 1074.9231140252.

Adding to 1242030340 its reverse (430302421), we get a palindrome (1672332761).

The spelling of 1242030340 in words is "one billion, two hundred forty-two million, thirty thousand, three hundred forty".