1242504441 has 12 divisors (see below), whose sum is σ = 1861200432. Its totient is φ = 828336132.

The previous prime is 1242504433. The next prime is 1242504443. The reversal of 1242504441 is 1444052421.

It is not a de Polignac number, because 1242504441 - 2³ = 1242504433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1242504443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2556351 + ... + 2556836.

It is an arithmetic number, because the mean of its divisors is an integer number (155100036).

Almost surely, 2^1242504441 is an apocalyptic number.

It is an amenable number.

1242504441 is a deficient number, since it is larger than the sum of its proper divisors (618695991).

1242504441 is an frugal number, since it uses more digits than its factorization.

1242504441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5113202 (or 5113190 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 1242504441 is about 35249.1764584650. The cubic root of 1242504441 is about 1075.0598678755.

Adding to 1242504441 its reverse (1444052421), we get a palindrome (2686556862).

The spelling of 1242504441 in words is "one billion, two hundred forty-two million, five hundred four thousand, four hundred forty-one".