405604193 has 4 divisors (see below), whose sum is σ = 405759168. Its totient is φ = 405449220.

The previous prime is 405604169. The next prime is 405604211. The reversal of 405604193 is 391406504.

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 405604193 - 2²⁰ = 404555617 is a prime.

It is a super-2 number, since 2×405604193² = 329029522758362498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405604163) 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, 73493 + ... + 78818.

It is an arithmetic number, because the mean of its divisors is an integer number (101439792).

Almost surely, 2^405604193 is an apocalyptic number.

It is an amenable number.

405604193 is a deficient number, since it is larger than the sum of its proper divisors (154975).

405604193 is a wasteful number, since it uses less digits than its factorization.

405604193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154974.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 405604193 is about 20139.6174988504. The cubic root of 405604193 is about 740.2313575354.

The spelling of 405604193 in words is "four hundred five million, six hundred four thousand, one hundred ninety-three".