1144404431402 has 16 divisors (see below), whose sum is σ = 1746152644320. Its totient is φ = 562358560848.

The previous prime is 1144404431381. The next prime is 1144404431431. The reversal of 1144404431402 is 2041344044411.

It is a super-2 number, since 2×1144404431402² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 793268 + ... + 1708239.

It is an arithmetic number, because the mean of its divisors is an integer number (109134540270).

Almost surely, 2^{1144404431402} is an apocalyptic number.

1144404431402 is a deficient number, since it is larger than the sum of its proper divisors (601748212918).

1144404431402 is a wasteful number, since it uses less digits than its factorization.

1144404431402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505445.

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 1144404431402 its reverse (2041344044411), we get a palindrome (3185748475813).

The spelling of 1144404431402 in words is "one trillion, one hundred forty-four billion, four hundred four million, four hundred thirty-one thousand, four hundred two".