406444605 has 32 divisors (see below), whose sum is σ = 744167424. Its totient is φ = 185564736.

The previous prime is 406444601. The next prime is 406444679. The reversal of 406444605 is 506444604.

It is not a de Polignac number, because 406444605 - 2² = 406444601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406444601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99534 + ... + 103536.

It is an arithmetic number, because the mean of its divisors is an integer number (23255232).

Almost surely, 2^406444605 is an apocalyptic number.

It is an amenable number.

406444605 is a deficient number, since it is larger than the sum of its proper divisors (337722819).

406444605 is a wasteful number, since it uses less digits than its factorization.

406444605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4985.

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 406444605 is about 20160.4713486565. The cubic root of 406444605 is about 740.7422580282.

Subtracting 406444605 from its reverse (506444604), we obtain a palindrome (99999999).

The spelling of 406444605 in words is "four hundred six million, four hundred forty-four thousand, six hundred five".