1242212433 has 64 divisors (see below), whose sum is σ = 2143272960. Its totient is φ = 621216000.

The previous prime is 1242212431. The next prime is 1242212437. The reversal of 1242212433 is 3342122421.

It is a happy number.

It is not a de Polignac number, because 1242212433 - 2¹ = 1242212431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1242212431) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 862528 + ... + 863966.

It is an arithmetic number, because the mean of its divisors is an integer number (33488640).

Almost surely, 2^1242212433 is an apocalyptic number.

It is an amenable number.

1242212433 is a deficient number, since it is larger than the sum of its proper divisors (901060527).

1242212433 is a wasteful number, since it uses less digits than its factorization.

1242212433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598.

The product of its digits is 2304, while the sum is 24.

The square root of 1242212433 is about 35245.0341608573. The cubic root of 1242212433 is about 1074.9756426426.

Adding to 1242212433 its reverse (3342122421), we get a palindrome (4584334854).

The spelling of 1242212433 in words is "one billion, two hundred forty-two million, two hundred twelve thousand, four hundred thirty-three".