1244443542 has 16 divisors (see below), whose sum is σ = 2501785200. Its totient is φ = 412664832.

The previous prime is 1244443511. The next prime is 1244443559. The reversal of 1244443542 is 2453444421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536167 + ... + 538482.

It is an arithmetic number, because the mean of its divisors is an integer number (156361575).

Almost surely, 2^1244443542 is an apocalyptic number.

1244443542 is an abundant number, since it is smaller than the sum of its proper divisors (1257341658).

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

1244443542 is a wasteful number, since it uses less digits than its factorization.

1244443542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074847.

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

The square root of 1244443542 is about 35276.6713565778. The cubic root of 1244443542 is about 1075.6188373443.

Adding to 1244443542 its reverse (2453444421), we get a palindrome (3697887963).

The spelling of 1244443542 in words is "one billion, two hundred forty-four million, four hundred forty-three thousand, five hundred forty-two".