400683326405 has 16 divisors (see below), whose sum is σ = 482618594304. Its totient is φ = 319348601280.

The previous prime is 400683326371. The next prime is 400683326411. The reversal of 400683326405 is 504623386004.

It is not a de Polignac number, because 400683326405 - 2¹⁴ = 400683310021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3178559 + ... + 3302211.

It is an arithmetic number, because the mean of its divisors is an integer number (30163662144).

Almost surely, 2^400683326405 is an apocalyptic number.

It is an amenable number.

400683326405 is a deficient number, since it is larger than the sum of its proper divisors (81935267899).

400683326405 is a wasteful number, since it uses less digits than its factorization.

400683326405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126076.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 400683326405 in words is "four hundred billion, six hundred eighty-three million, three hundred twenty-six thousand, four hundred five".