1242213424 has 20 divisors (see below), whose sum is σ = 2410158240. Its totient is φ = 620237120.

The previous prime is 1242213353. The next prime is 1242213439. The reversal of 1242213424 is 4243122421.

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 3 ways as a sum of consecutive naturals, for example, 42487 + ... + 65494.

It is an arithmetic number, because the mean of its divisors is an integer number (120507912).

Almost surely, 2^1242213424 is an apocalyptic number.

It is an amenable number.

1242213424 is a deficient number, since it is larger than the sum of its proper divisors (1167944816).

1242213424 is a wasteful number, since it uses less digits than its factorization.

1242213424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108708 (or 108702 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 1242213424 is about 35245.0482195726. The cubic root of 1242213424 is about 1074.9759285037.

Adding to 1242213424 its reverse (4243122421), we get a palindrome (5485335845).

The spelling of 1242213424 in words is "one billion, two hundred forty-two million, two hundred thirteen thousand, four hundred twenty-four".