1242044045 has 32 divisors (see below), whose sum is σ = 1755198720. Its totient is φ = 834211840.

The previous prime is 1242044033. The next prime is 1242044051. The reversal of 1242044045 is 5404402421.

It is not a de Polignac number, because 1242044045 - 2⁶ = 1242043981 is a prime.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 19757 + ... + 53613.

It is an arithmetic number, because the mean of its divisors is an integer number (54849960).

Almost surely, 2^1242044045 is an apocalyptic number.

It is an amenable number.

1242044045 is a deficient number, since it is larger than the sum of its proper divisors (513154675).

1242044045 is a wasteful number, since it uses less digits than its factorization.

1242044045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33925.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 1242044045 is about 35242.6452611038. The cubic root of 1242044045 is about 1074.9270677040.

Adding to 1242044045 its reverse (5404402421), we get a palindrome (6646446466).

It can be divided in two parts, 12420 and 44045, that added together give a palindrome (56465).

The spelling of 1242044045 in words is "one billion, two hundred forty-two million, forty-four thousand, forty-five".