406404113 has 4 divisors (see below), whose sum is σ = 410349888. Its totient is φ = 402458340.

The previous prime is 406404107. The next prime is 406404121. The reversal of 406404113 is 311404604.

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 not a de Polignac number, because 406404113 - 2⁸ = 406403857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406404133) 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, 1972733 + ... + 1972938.

It is an arithmetic number, because the mean of its divisors is an integer number (102587472).

Almost surely, 2^406404113 is an apocalyptic number.

It is an amenable number.

406404113 is a deficient number, since it is larger than the sum of its proper divisors (3945775).

406404113 is a wasteful number, since it uses less digits than its factorization.

406404113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3945774.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 406404113 is about 20159.4670812499. The cubic root of 406404113 is about 740.7176584221.

Adding to 406404113 its reverse (311404604), we get a palindrome (717808717).

The spelling of 406404113 in words is "four hundred six million, four hundred four thousand, one hundred thirteen".