405390341 has 4 divisors (see below), whose sum is σ = 423016032. Its totient is φ = 387764652.

The previous prime is 405390311. The next prime is 405390353. The reversal of 405390341 is 143093504.

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 405390341 - 2⁶ = 405390277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405390301) 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, 8812811 + ... + 8812856.

It is an arithmetic number, because the mean of its divisors is an integer number (105754008).

Almost surely, 2^405390341 is an apocalyptic number.

It is an amenable number.

405390341 is a deficient number, since it is larger than the sum of its proper divisors (17625691).

405390341 is a wasteful number, since it uses less digits than its factorization.

405390341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17625690.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 405390341 is about 20134.3075619699. The cubic root of 405390341 is about 740.1012407138.

The spelling of 405390341 in words is "four hundred five million, three hundred ninety thousand, three hundred forty-one".