406386089 has 4 divisors (see below), whose sum is σ = 406648320. Its totient is φ = 406123860.

The previous prime is 406386067. The next prime is 406386119. The reversal of 406386089 is 980683604.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406386089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406386049) 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, 128777 + ... + 131894.

It is an arithmetic number, because the mean of its divisors is an integer number (101662080).

Almost surely, 2^406386089 is an apocalyptic number.

It is an amenable number.

406386089 is a deficient number, since it is larger than the sum of its proper divisors (262231).

406386089 is a wasteful number, since it uses less digits than its factorization.

406386089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262230.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 406386089 is about 20159.0200406667. The cubic root of 406386089 is about 740.7067079977.

The spelling of 406386089 in words is "four hundred six million, three hundred eighty-six thousand, eighty-nine".