40402051442444 has 12 divisors (see below), whose sum is σ = 71432493014904. Its totient is φ = 19992767723904.

The previous prime is 40402051442387. The next prime is 40402051442447. The reversal of 40402051442444 is 44424415020404.

It is a junction number, because it is equal to n+sod(n) for n = 40402051442398 and 40402051442407.

It is not an unprimeable number, because it can be changed into a prime (40402051442447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52064498894 + ... + 52064499669.

It is an arithmetic number, because the mean of its divisors is an integer number (5952707751242).

Almost surely, 2^{40402051442444} is an apocalyptic number.

It is an amenable number.

40402051442444 is a deficient number, since it is larger than the sum of its proper divisors (31030441572460).

40402051442444 is a wasteful number, since it uses less digits than its factorization.

40402051442444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104128998664 (or 104128998662 counting only the distinct ones).

The product of its (nonzero) digits is 327680, while the sum is 38.

Adding to 40402051442444 its reverse (44424415020404), we get a palindrome (84826466462848).

The spelling of 40402051442444 in words is "forty trillion, four hundred two billion, fifty-one million, four hundred forty-two thousand, four hundred forty-four".