406506244 has 27 divisors (see below), whose sum is σ = 756970207. Its totient is φ = 190974464.

The previous prime is 406506239. The next prime is 406506251. The reversal of 406506244 is 442605604.

The square root of 406506244 is 20162.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 64995844 + 341510400 = 8062^2 + 18480^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 685212 + ... + 685804.

Almost surely, 2^406506244 is an apocalyptic number.

406506244 is the 20162-nd square number.

It is an amenable number.

406506244 is a deficient number, since it is larger than the sum of its proper divisors (350463963).

406506244 is an equidigital number, since it uses as much as digits as its factorization.

406506244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The cubic root of 406506244 is about 740.7797016746.

The spelling of 406506244 in words is "four hundred six million, five hundred six thousand, two hundred forty-four".