1244142042 has 64 divisors (see below), whose sum is σ = 3095293824. Its totient is φ = 327536640.

The previous prime is 1244142019. The next prime is 1244142049. The reversal of 1244142042 is 2402414421.

It is not an unprimeable number, because it can be changed into a prime (1244142049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28063 + ... + 57234.

It is an arithmetic number, because the mean of its divisors is an integer number (48363966).

Almost surely, 2^1244142042 is an apocalyptic number.

1244142042 is an abundant number, since it is smaller than the sum of its proper divisors (1851151782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1244142042 is a wasteful number, since it uses less digits than its factorization.

1244142042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85343.

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 1244142042 is about 35272.3977353397. The cubic root of 1244142042 is about 1075.5319644403.

Adding to 1244142042 its reverse (2402414421), we get a palindrome (3646556463).

The spelling of 1244142042 in words is "one billion, two hundred forty-four million, one hundred forty-two thousand, forty-two".