405273605 has 16 divisors (see below), whose sum is σ = 531486144. Its totient is φ = 294218880.

The previous prime is 405273587. The next prime is 405273607. The reversal of 405273605 is 506372504.

It is not a de Polignac number, because 405273605 - 2²⁶ = 338164741 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 (405273607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26009 + ... + 38561.

It is an arithmetic number, because the mean of its divisors is an integer number (33217884).

Almost surely, 2^405273605 is an apocalyptic number.

It is an amenable number.

405273605 is a deficient number, since it is larger than the sum of its proper divisors (126212539).

405273605 is a wasteful number, since it uses less digits than its factorization.

405273605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13156.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 405273605 is about 20131.4084206744. The cubic root of 405273605 is about 740.0301941661.

The spelling of 405273605 in words is "four hundred five million, two hundred seventy-three thousand, six hundred five".