1406143423444 has 12 divisors (see below), whose sum is σ = 2461489756768. Its totient is φ = 702860635800.

The previous prime is 1406143423429. The next prime is 1406143423471. The reversal of 1406143423444 is 4443243416041.

It is a super-2 number, since 2×1406143423444² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1406143423397 and 1406143423406.

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, 52753992 + ... + 52780639.

Almost surely, 2^{1406143423444} is an apocalyptic number.

It is an amenable number.

1406143423444 is a deficient number, since it is larger than the sum of its proper divisors (1055346333324).

1406143423444 is a wasteful number, since it uses less digits than its factorization.

1406143423444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105537966 (or 105537964 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 40.

Adding to 1406143423444 its reverse (4443243416041), we get a palindrome (5849386839485).

The spelling of 1406143423444 in words is "one trillion, four hundred six billion, one hundred forty-three million, four hundred twenty-three thousand, four hundred forty-four".