406080889 has 4 divisors (see below), whose sum is σ = 406121380. Its totient is φ = 406040400.

The previous prime is 406080877. The next prime is 406080907. The reversal of 406080889 is 988080604.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 105925264 + 300155625 = 10292^2 + 17325^2 .

It is a cyclic number.

It is not a de Polignac number, because 406080889 - 2¹⁵ = 406048121 is a prime.

It is a super-2 number, since 2×406080889² = 329803376822060642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406080839) 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, 7207 + ... + 29395.

It is an arithmetic number, because the mean of its divisors is an integer number (101530345).

Almost surely, 2^406080889 is an apocalyptic number.

It is an amenable number.

406080889 is a deficient number, since it is larger than the sum of its proper divisors (40491).

406080889 is a wasteful number, since it uses less digits than its factorization.

406080889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40490.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 406080889 is about 20151.4488064754. The cubic root of 406080889 is about 740.5212355213.

The spelling of 406080889 in words is "four hundred six million, eighty thousand, eight hundred eighty-nine".