406320132 has 12 divisors (see below), whose sum is σ = 948080336. Its totient is φ = 135440040.

The previous prime is 406320121. The next prime is 406320133. The reversal of 406320132 is 231023604.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 406320099 and 406320108.

It is not an unprimeable number, because it can be changed into a prime (406320133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16929994 + ... + 16930017.

Almost surely, 2^406320132 is an apocalyptic number.

It is an amenable number.

406320132 is an abundant number, since it is smaller than the sum of its proper divisors (541760204).

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

406320132 is a wasteful number, since it uses less digits than its factorization.

406320132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33860018 (or 33860016 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 406320132 is about 20157.3840564692. The cubic root of 406320132 is about 740.6666332700. Note that the first 4 decimals are identical.

Adding to 406320132 its reverse (231023604), we get a palindrome (637343736).

The spelling of 406320132 in words is "four hundred six million, three hundred twenty thousand, one hundred thirty-two".