406540572132 has 48 divisors (see below), whose sum is σ = 953635737600. Its totient is φ = 134795196960.

The previous prime is 406540572091. The next prime is 406540572187. The reversal of 406540572132 is 231275045604.

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 15 ways as a sum of consecutive naturals, for example, 1673919 + ... + 1901337.

It is an arithmetic number, because the mean of its divisors is an integer number (19867411200).

Almost surely, 2^406540572132 is an apocalyptic number.

It is an amenable number.

406540572132 is an abundant number, since it is smaller than the sum of its proper divisors (547095165468).

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

406540572132 is a wasteful number, since it uses less digits than its factorization.

406540572132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228216 (or 228214 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 39.

The spelling of 406540572132 in words is "four hundred six billion, five hundred forty million, five hundred seventy-two thousand, one hundred thirty-two".