40444220436478 has 8 divisors (see below), whose sum is σ = 60826400129880. Its totient is φ = 20168753726520.

The previous prime is 40444220436463. The next prime is 40444220436491. The reversal of 40444220436478 is 87463402244404.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 26678244913 + ... + 26678246428.

It is an arithmetic number, because the mean of its divisors is an integer number (7603300016235).

Almost surely, 2^{40444220436478} is an apocalyptic number.

40444220436478 is a deficient number, since it is larger than the sum of its proper divisors (20382179693402).

40444220436478 is a wasteful number, since it uses less digits than its factorization.

40444220436478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53356491722.

The product of its (nonzero) digits is 16515072, while the sum is 52.

The spelling of 40444220436478 in words is "forty trillion, four hundred forty-four billion, two hundred twenty million, four hundred thirty-six thousand, four hundred seventy-eight".