1244434542 has 96 divisors (see below), whose sum is σ = 2838900960. Its totient is φ = 363018240.

The previous prime is 1244434531. The next prime is 1244434547. The reversal of 1244434542 is 2454344421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244434547) 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 47 ways as a sum of consecutive naturals, for example, 1537834 + ... + 1538642.

It is an arithmetic number, because the mean of its divisors is an integer number (29571885).

Almost surely, 2^1244434542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1244434542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1419450480).

1244434542 is an abundant number, since it is smaller than the sum of its proper divisors (1594466418).

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

1244434542 is a wasteful number, since it uses less digits than its factorization.

1244434542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918 (or 905 counting only the distinct ones).

The product of its digits is 61440, while the sum is 33.

The square root of 1244434542 is about 35276.5437932913. The cubic root of 1244434542 is about 1075.6162443265.

Adding to 1244434542 its reverse (2454344421), we get a palindrome (3698778963).

The spelling of 1244434542 in words is "one billion, two hundred forty-four million, four hundred thirty-four thousand, five hundred forty-two".