406440162 has 36 divisors (see below), whose sum is σ = 912067650. Its totient is φ = 130803456.

The previous prime is 406440149. The next prime is 406440173. The reversal of 406440162 is 261044604.

406440162 is a `hidden beast` number, since 4 + 0 + 644 + 0 + 16 + 2 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 317873241 + 88566921 = 17829^2 + 9411^2 .

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 1714 + ... + 28562.

Almost surely, 2^406440162 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 406440162, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456033825).

406440162 is an abundant number, since it is smaller than the sum of its proper divisors (505627488).

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

406440162 is a wasteful number, since it uses less digits than its factorization.

406440162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26915 (or 26883 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 406440162 is about 20160.3611574793. The cubic root of 406440162 is about 740.7395589069.

Adding to 406440162 its reverse (261044604), we get a palindrome (667484766).

The spelling of 406440162 in words is "four hundred six million, four hundred forty thousand, one hundred sixty-two".