1244452542 has 8 divisors (see below), whose sum is σ = 2488905096. Its totient is φ = 414817512.

The previous prime is 1244452483. The next prime is 1244452543. The reversal of 1244452542 is 2452544421.

It is a sphenic number, since it is the product of 3 distinct primes.

1244452542 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244452543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103704373 + ... + 103704384.

It is an arithmetic number, because the mean of its divisors is an integer number (311113137).

Almost surely, 2^1244452542 is an apocalyptic number.

1244452542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1244452542 is a wasteful number, since it uses less digits than its factorization.

1244452542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207408762.

The product of its digits is 51200, while the sum is 33.

The square root of 1244452542 is about 35276.7989194031. The cubic root of 1244452542 is about 1075.6214303497.

Adding to 1244452542 its reverse (2452544421), we get a palindrome (3696996963).

The spelling of 1244452542 in words is "one billion, two hundred forty-four million, four hundred fifty-two thousand, five hundred forty-two".