406216344 has 64 divisors (see below), whose sum is σ = 1036189440. Its totient is φ = 132681600.

The previous prime is 406216331. The next prime is 406216351. The reversal of 406216344 is 443612604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248859 + ... + 250485.

It is an arithmetic number, because the mean of its divisors is an integer number (16190460).

Almost surely, 2^406216344 is an apocalyptic number.

It is an amenable number.

406216344 is an abundant number, since it is smaller than the sum of its proper divisors (629973096).

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

406216344 is a wasteful number, since it uses less digits than its factorization.

406216344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840 (or 1836 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 406216344 is about 20154.8094508482. The cubic root of 406216344 is about 740.6035640719.

Adding to 406216344 its reverse (443612604), we get a palindrome (849828948).

The spelling of 406216344 in words is "four hundred six million, two hundred sixteen thousand, three hundred forty-four".