42440406806446 has 16 divisors (see below), whose sum is σ = 69488291719728. Its totient is φ = 19279884750400.

The previous prime is 42440406806431. The next prime is 42440406806503. The reversal of 42440406806446 is 64460860404424.

It is a junction number, because it is equal to n+sod(n) for n = 42440406806393 and 42440406806402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560423905 + ... + 560499628.

It is an arithmetic number, because the mean of its divisors is an integer number (4343018232483).

Almost surely, 2^{42440406806446} is an apocalyptic number.

42440406806446 is a deficient number, since it is larger than the sum of its proper divisors (27047884913282).

42440406806446 is a wasteful number, since it uses less digits than its factorization.

42440406806446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120925267.

The product of its (nonzero) digits is 14155776, while the sum is 52.

The spelling of 42440406806446 in words is "forty-two trillion, four hundred forty billion, four hundred six million, eight hundred six thousand, four hundred forty-six".