401794105438 has 32 divisors (see below), whose sum is σ = 672790302720. Its totient is φ = 178396452960.

The previous prime is 401794105429. The next prime is 401794105441. The reversal of 401794105438 is 834501497104.

It is a super-2 number, since 2×401794105438² (a number of 24 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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144595 + ... + 908017.

It is an arithmetic number, because the mean of its divisors is an integer number (21024696960).

Almost surely, 2^401794105438 is an apocalyptic number.

401794105438 is a deficient number, since it is larger than the sum of its proper divisors (270996197282).

401794105438 is a wasteful number, since it uses less digits than its factorization.

401794105438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763992.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 401794105438 in words is "four hundred one billion, seven hundred ninety-four million, one hundred five thousand, four hundred thirty-eight".