1144405246 has 4 divisors (see below), whose sum is σ = 1716607872. Its totient is φ = 572202622.

The previous prime is 1144405231. The next prime is 1144405247. The reversal of 1144405246 is 6425044411.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144405247) 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 as a sum of consecutive naturals, namely, 286101310 + ... + 286101313.

It is an arithmetic number, because the mean of its divisors is an integer number (429151968).

Almost surely, 2^1144405246 is an apocalyptic number.

1144405246 is a deficient number, since it is larger than the sum of its proper divisors (572202626).

1144405246 is an equidigital number, since it uses as much as digits as its factorization.

1144405246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572202625.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 1144405246 is about 33829.0591947219. The cubic root of 1144405246 is about 1045.9877860397.

Adding to 1144405246 its reverse (6425044411), we get a palindrome (7569449657).

The spelling of 1144405246 in words is "one billion, one hundred forty-four million, four hundred five thousand, two hundred forty-six".