1244142104 has 16 divisors (see below), whose sum is σ = 2347627200. Its totient is φ = 618108192.

The previous prime is 1244142071. The next prime is 1244142113. The reversal of 1244142104 is 4012414421.

It is a self number, because there is not a number n which added to its sum of digits gives 1244142104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494024 + ... + 496535.

It is an arithmetic number, because the mean of its divisors is an integer number (146726700).

Almost surely, 2^1244142104 is an apocalyptic number.

It is an amenable number.

1244142104 is a deficient number, since it is larger than the sum of its proper divisors (1103485096).

1244142104 is a wasteful number, since it uses less digits than its factorization.

1244142104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990722 (or 990718 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 1244142104 is about 35272.3986142139. The cubic root of 1244142104 is about 1075.5319823062.

Adding to 1244142104 its reverse (4012414421), we get a palindrome (5256556525).

It can be divided in two parts, 12441 and 42104, that added together give a palindrome (54545).

The spelling of 1244142104 in words is "one billion, two hundred forty-four million, one hundred forty-two thousand, one hundred four".