406334220 has 24 divisors (see below), whose sum is σ = 1137735984. Its totient is φ = 108355776.

The previous prime is 406334197. The next prime is 406334249. The reversal of 406334220 is 22433604.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3386059 + ... + 3386178.

It is an arithmetic number, because the mean of its divisors is an integer number (47405666).

Almost surely, 2^406334220 is an apocalyptic number.

It is an amenable number.

406334220 is an abundant number, since it is smaller than the sum of its proper divisors (731401764).

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

406334220 is a wasteful number, since it uses less digits than its factorization.

406334220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6772249 (or 6772247 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 406334220 is about 20157.7335035465. The cubic root of 406334220 is about 740.6751933438.

Adding to 406334220 its reverse (22433604), we get a palindrome (428767824).

It can be divided in two parts, 4063 and 34220, that added together give a palindrome (38283).

The spelling of 406334220 in words is "four hundred six million, three hundred thirty-four thousand, two hundred twenty".