400129822176 has 96 divisors (see below), whose sum is σ = 1206421977600. Its totient is φ = 113748281856.

The previous prime is 400129822159. The next prime is 400129822199. The reversal of 400129822176 is 671228921004.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 1362331 + ... + 1629786.

It is an arithmetic number, because the mean of its divisors is an integer number (12566895600).

Almost surely, 2^400129822176 is an apocalyptic number.

It is an amenable number.

400129822176 is an abundant number, since it is smaller than the sum of its proper divisors (806292155424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400129822176 is a wasteful number, since it uses less digits than its factorization.

400129822176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992336 (or 2992328 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 400129822176 in words is "four hundred billion, one hundred twenty-nine million, eight hundred twenty-two thousand, one hundred seventy-six".