144400344012 has 18 divisors (see below), whose sum is σ = 365011980788. Its totient is φ = 48133447992.

The previous prime is 144400344007. The next prime is 144400344043. The reversal of 144400344012 is 210443004441.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×144400344012² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2005560298 + ... + 2005560369.

Almost surely, 2^144400344012 is an apocalyptic number.

144400344012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144400344012 is an abundant number, since it is smaller than the sum of its proper divisors (220611636776).

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

144400344012 is a wasteful number, since it uses less digits than its factorization.

144400344012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4011120677 (or 4011120672 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 144400344012 its reverse (210443004441), we get a palindrome (354843348453).

The spelling of 144400344012 in words is "one hundred forty-four billion, four hundred million, three hundred forty-four thousand, twelve".