400421054374 has 16 divisors (see below), whose sum is σ = 656790844176. Its totient is φ = 181577239200.

The previous prime is 400421054323. The next prime is 400421054461. The reversal of 400421054374 is 473450124004.

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 7 ways as a sum of consecutive naturals, for example, 21607077 + ... + 21625600.

It is an arithmetic number, because the mean of its divisors is an integer number (41049427761).

Almost surely, 2^400421054374 is an apocalyptic number.

400421054374 is a deficient number, since it is larger than the sum of its proper divisors (256369789802).

400421054374 is a wasteful number, since it uses less digits than its factorization.

400421054374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43233111.

The product of its (nonzero) digits is 53760, while the sum is 34.

Adding to 400421054374 its reverse (473450124004), we get a palindrome (873871178378).

The spelling of 400421054374 in words is "four hundred billion, four hundred twenty-one million, fifty-four thousand, three hundred seventy-four".