1242544330 has 16 divisors (see below), whose sum is σ = 2354294880. Its totient is φ = 470858832.

The previous prime is 1242544327. The next prime is 1242544333. The reversal of 1242544330 is 334452421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1242544327) and next prime (1242544333).

It is not an unprimeable number, because it can be changed into a prime (1242544333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3269664 + ... + 3270043.

It is an arithmetic number, because the mean of its divisors is an integer number (147143430).

Almost surely, 2^1242544330 is an apocalyptic number.

1242544330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242544330 is a deficient number, since it is larger than the sum of its proper divisors (1111750550).

1242544330 is a wasteful number, since it uses less digits than its factorization.

1242544330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6539733.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 1242544330 is about 35249.7422685613. The cubic root of 1242544330 is about 1075.0713722218.

Adding to 1242544330 its reverse (334452421), we get a palindrome (1576996751).

The spelling of 1242544330 in words is "one billion, two hundred forty-two million, five hundred forty-four thousand, three hundred thirty".