406383289 has 4 divisors (see below), whose sum is σ = 437643556. Its totient is φ = 375123024.

The previous prime is 406383221. The next prime is 406383323. The reversal of 406383289 is 982383604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 177768889 + 228614400 = 13333^2 + 15120^2 .

It is a cyclic number.

It is not a de Polignac number, because 406383289 - 2⁷ = 406383161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406383689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15630114 + ... + 15630139.

It is an arithmetic number, because the mean of its divisors is an integer number (109410889).

Almost surely, 2^406383289 is an apocalyptic number.

It is an amenable number.

406383289 is a deficient number, since it is larger than the sum of its proper divisors (31260267).

406383289 is a wasteful number, since it uses less digits than its factorization.

406383289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31260266.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 406383289 is about 20158.9505927268. The cubic root of 406383289 is about 740.7050068375.

The spelling of 406383289 in words is "four hundred six million, three hundred eighty-three thousand, two hundred eighty-nine".