405405513 has 8 divisors (see below), whose sum is σ = 600600800. Its totient is φ = 270270324.

The previous prime is 405405509. The next prime is 405405523. The reversal of 405405513 is 315504504.

It is not a de Polignac number, because 405405513 - 2² = 405405509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 15015019 = 405405513 / (4 + 0 + 5 + 4 + 0 + 5 + 5 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405405523) 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, 7507483 + ... + 7507536.

It is an arithmetic number, because the mean of its divisors is an integer number (75075100).

Almost surely, 2^405405513 is an apocalyptic number.

It is an amenable number.

405405513 is a deficient number, since it is larger than the sum of its proper divisors (195195287).

405405513 is a wasteful number, since it uses less digits than its factorization.

405405513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15015028 (or 15015022 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 405405513 is about 20134.6843282928. The cubic root of 405405513 is about 740.1104735238.

The spelling of 405405513 in words is "four hundred five million, four hundred five thousand, five hundred thirteen".