1242330450 has 24 divisors (see below), whose sum is σ = 3080979888. Its totient is φ = 331288080.

The previous prime is 1242330421. The next prime is 1242330451. The reversal of 1242330450 is 540332421.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1242330450.

It is not an unprimeable number, because it can be changed into a prime (1242330451) 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 11 ways as a sum of consecutive naturals, for example, 4140952 + ... + 4141251.

It is an arithmetic number, because the mean of its divisors is an integer number (128374162).

Almost surely, 2^1242330450 is an apocalyptic number.

1242330450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242330450 is an abundant number, since it is smaller than the sum of its proper divisors (1838649438).

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

1242330450 is a wasteful number, since it uses less digits than its factorization.

1242330450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8282218 (or 8282213 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1242330450 is about 35246.7083569516. The cubic root of 1242330450 is about 1075.0096844269.

Adding to 1242330450 its reverse (540332421), we get a palindrome (1782662871).

The spelling of 1242330450 in words is "one billion, two hundred forty-two million, three hundred thirty thousand, four hundred fifty".