406789305 has 32 divisors (see below), whose sum is σ = 706091904. Its totient is φ = 198790656.

The previous prime is 406789303. The next prime is 406789307. The reversal of 406789305 is 503987604.

It is a happy number.

406789305 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (406789303) and next prime (406789307).

It is not a de Polignac number, because 406789305 - 2¹ = 406789303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (406789303) 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, 19102 + ... + 34328.

It is an arithmetic number, because the mean of its divisors is an integer number (22065372).

Almost surely, 2^406789305 is an apocalyptic number.

It is an amenable number.

406789305 is a deficient number, since it is larger than the sum of its proper divisors (299302599).

406789305 is a wasteful number, since it uses less digits than its factorization.

406789305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15385.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 406789305 is about 20169.0184441385. The cubic root of 406789305 is about 740.9516032506.

The spelling of 406789305 in words is "four hundred six million, seven hundred eighty-nine thousand, three hundred five".