406359805 has 16 divisors (see below), whose sum is σ = 494841600. Its totient is φ = 320299200.

The previous prime is 406359787. The next prime is 406359809. The reversal of 406359805 is 508953604.

It is not a de Polignac number, because 406359805 - 2⁷ = 406359677 is a prime.

It is a super-2 number, since 2×406359805² = 330256582239276050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406359809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279330 + ... + 280780.

It is an arithmetic number, because the mean of its divisors is an integer number (30927600).

Almost surely, 2^406359805 is an apocalyptic number.

It is an amenable number.

406359805 is a deficient number, since it is larger than the sum of its proper divisors (88481795).

406359805 is a wasteful number, since it uses less digits than its factorization.

406359805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 406359805 is about 20158.3681135155. The cubic root of 406359805 is about 740.6907386561.

The spelling of 406359805 in words is "four hundred six million, three hundred fifty-nine thousand, eight hundred five".