840311438422 has 8 divisors (see below), whose sum is σ = 1260619210872. Its totient is φ = 420105034800.

The previous prime is 840311438419. The next prime is 840311438437. The reversal of 840311438422 is 224834113048.

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

It is a super-2 number, since 2×840311438422² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25321479 + ... + 25354642.

It is an arithmetic number, because the mean of its divisors is an integer number (157577401359).

Almost surely, 2^840311438422 is an apocalyptic number.

840311438422 is a deficient number, since it is larger than the sum of its proper divisors (420307772450).

840311438422 is a wasteful number, since it uses less digits than its factorization.

840311438422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50684414.

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 840311438422 in words is "eight hundred forty billion, three hundred eleven million, four hundred thirty-eight thousand, four hundred twenty-two".