405470027 has 4 divisors (see below), whose sum is σ = 410025960. Its totient is φ = 400914096.

The previous prime is 405470011. The next prime is 405470047. The reversal of 405470027 is 720074504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 405470027 - 2⁴ = 405470011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405470047) 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, 2277833 + ... + 2278010.

It is an arithmetic number, because the mean of its divisors is an integer number (102506490).

Almost surely, 2^405470027 is an apocalyptic number.

405470027 is a deficient number, since it is larger than the sum of its proper divisors (4555933).

405470027 is an equidigital number, since it uses as much as digits as its factorization.

405470027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4555932.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 405470027 is about 20136.2863259341. The cubic root of 405470027 is about 740.1497304760.

The spelling of 405470027 in words is "four hundred five million, four hundred seventy thousand, twenty-seven".