405284873 has 8 divisors (see below), whose sum is σ = 464291520. Its totient is φ = 346555440.

The previous prime is 405284849. The next prime is 405284899. The reversal of 405284873 is 378482504.

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

It is not a de Polignac number, because 405284873 - 2¹⁴ = 405268489 is a prime.

It is a super-2 number, since 2×405284873² = 328511656565252258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 405284873.

It is not an unprimeable number, because it can be changed into a prime (405284843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66158 + ... + 72023.

It is an arithmetic number, because the mean of its divisors is an integer number (58036440).

Almost surely, 2^405284873 is an apocalyptic number.

It is an amenable number.

405284873 is a deficient number, since it is larger than the sum of its proper divisors (59006647).

405284873 is a wasteful number, since it uses less digits than its factorization.

405284873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138607.

The product of its (nonzero) digits is 215040, while the sum is 41.

The square root of 405284873 is about 20131.6882799233. The cubic root of 405284873 is about 740.0370525640.

The spelling of 405284873 in words is "four hundred five million, two hundred eighty-four thousand, eight hundred seventy-three".