406264405 has 8 divisors (see below), whose sum is σ = 491239584. Its totient is φ = 322530000.

The previous prime is 406264399. The next prime is 406264427. The reversal of 406264405 is 504462604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-406264405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309471 + ... + 310780.

It is an arithmetic number, because the mean of its divisors is an integer number (61404948).

Almost surely, 2^406264405 is an apocalyptic number.

It is an amenable number.

406264405 is a deficient number, since it is larger than the sum of its proper divisors (84975179).

406264405 is a wasteful number, since it uses less digits than its factorization.

406264405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620387.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 406264405 is about 20156.0017116491. The cubic root of 406264405 is about 740.6327707945.

The spelling of 406264405 in words is "four hundred six million, two hundred sixty-four thousand, four hundred five".