400221425015406 has 12 divisors (see below), whose sum is σ = 867146420866752. Its totient is φ = 133407141671796.

The previous prime is 400221425015393. The next prime is 400221425015429. The reversal of 400221425015406 is 604510524122004.

400221425015406 is a `hidden beast` number, since 4 + 0 + 0 + 2 + 2 + 142 + 501 + 5 + 4 + 0 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11117261805966 + ... + 11117261806001.

It is an arithmetic number, because the mean of its divisors is an integer number (72262201738896).

Almost surely, 2^{400221425015406} is an apocalyptic number.

400221425015406 is an abundant number, since it is smaller than the sum of its proper divisors (466924995851346).

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

400221425015406 is a wasteful number, since it uses less digits than its factorization.

400221425015406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22234523611975 (or 22234523611972 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The spelling of 400221425015406 in words is "four hundred trillion, two hundred twenty-one billion, four hundred twenty-five million, fifteen thousand, four hundred six".