404540027 has 4 divisors (see below), whose sum is σ = 404687256. Its totient is φ = 404392800.

The previous prime is 404540021. The next prime is 404540029. The reversal of 404540027 is 720045404.

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 404540027 - 2⁴ = 404540011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404539978 and 404540005.

It is not an unprimeable number, because it can be changed into a prime (404540021) 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, 69413 + ... + 75014.

It is an arithmetic number, because the mean of its divisors is an integer number (101171814).

Almost surely, 2^404540027 is an apocalyptic number.

404540027 is a deficient number, since it is larger than the sum of its proper divisors (147229).

404540027 is a wasteful number, since it uses less digits than its factorization.

404540027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147228.

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 404540027 is about 20113.1804297580. The cubic root of 404540027 is about 739.5834196587.

The spelling of 404540027 in words is "four hundred four million, five hundred forty thousand, twenty-seven".