1242434441 has 4 divisors (see below), whose sum is σ = 1242949632. Its totient is φ = 1241919252.

The previous prime is 1242434423. The next prime is 1242434483. The reversal of 1242434441 is 1444342421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1242434441 - 2²⁶ = 1175325577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242433441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253961 + ... + 258806.

It is an arithmetic number, because the mean of its divisors is an integer number (310737408).

Almost surely, 2^1242434441 is an apocalyptic number.

It is an amenable number.

1242434441 is a deficient number, since it is larger than the sum of its proper divisors (515191).

1242434441 is an equidigital number, since it uses as much as digits as its factorization.

1242434441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515190.

The product of its digits is 12288, while the sum is 29.

The square root of 1242434441 is about 35248.1835134805. The cubic root of 1242434441 is about 1075.0396786508.

Adding to 1242434441 its reverse (1444342421), we get a palindrome (2686776862).

The spelling of 1242434441 in words is "one billion, two hundred forty-two million, four hundred thirty-four thousand, four hundred forty-one".