400723760343 has 16 divisors (see below), whose sum is σ = 536698071936. Its totient is φ = 265949513760.

The previous prime is 400723760321. The next prime is 400723760357. The reversal of 400723760343 is 343067327004.

It is not a de Polignac number, because 400723760343 - 2⁶ = 400723760279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400723760243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12474180 + ... + 12506262.

It is an arithmetic number, because the mean of its divisors is an integer number (33543629496).

Almost surely, 2^400723760343 is an apocalyptic number.

400723760343 is a deficient number, since it is larger than the sum of its proper divisors (135974311593).

400723760343 is a wasteful number, since it uses less digits than its factorization.

400723760343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50654.

The product of its (nonzero) digits is 254016, while the sum is 39.

The spelling of 400723760343 in words is "four hundred billion, seven hundred twenty-three million, seven hundred sixty thousand, three hundred forty-three".