1144536042 has 64 divisors (see below), whose sum is σ = 2509032960. Its totient is φ = 345945600.

The previous prime is 1144536037. The next prime is 1144536049. The reversal of 1144536042 is 2406354411.

It is not an unprimeable number, because it can be changed into a prime (1144536049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1731192 + ... + 1731852.

It is an arithmetic number, because the mean of its divisors is an integer number (39203640).

Almost surely, 2^1144536042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144536042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1254516480).

1144536042 is an abundant number, since it is smaller than the sum of its proper divisors (1364496918).

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

1144536042 is a wasteful number, since it uses less digits than its factorization.

1144536042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1144536042 is about 33830.9923295194. The cubic root of 1144536042 is about 1046.0276337560.

The spelling of 1144536042 in words is "one billion, one hundred forty-four million, five hundred thirty-six thousand, forty-two".