1244021342 has 8 divisors (see below), whose sum is σ = 1975798656. Its totient is φ = 585421792.

The previous prime is 1244021329. The next prime is 1244021369. The reversal of 1244021342 is 2431204421.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 18294398 + ... + 18294465.

It is an arithmetic number, because the mean of its divisors is an integer number (246974832).

Almost surely, 2^1244021342 is an apocalyptic number.

1244021342 is a deficient number, since it is larger than the sum of its proper divisors (731777314).

1244021342 is a wasteful number, since it uses less digits than its factorization.

1244021342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36588882.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1244021342 is about 35270.6867242474. The cubic root of 1244021342 is about 1075.4971825312.

Adding to 1244021342 its reverse (2431204421), we get a palindrome (3675225763).

The spelling of 1244021342 in words is "one billion, two hundred forty-four million, twenty-one thousand, three hundred forty-two".