440479427 has 4 divisors (see below), whose sum is σ = 447945240. Its totient is φ = 433013616.

The previous prime is 440479421. The next prime is 440479447. The reversal of 440479427 is 724974044.

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 440479427 - 2⁴ = 440479411 is a prime.

It is a super-2 number, since 2×440479427² = 388044251220496658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440479421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3732818 + ... + 3732935.

It is an arithmetic number, because the mean of its divisors is an integer number (111986310).

Almost surely, 2^440479427 is an apocalyptic number.

440479427 is a deficient number, since it is larger than the sum of its proper divisors (7465813).

440479427 is an equidigital number, since it uses as much as digits as its factorization.

440479427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7465812.

The product of its (nonzero) digits is 225792, while the sum is 41.

The square root of 440479427 is about 20987.6017448397. The cubic root of 440479427 is about 760.8666400744.

The spelling of 440479427 in words is "four hundred forty million, four hundred seventy-nine thousand, four hundred twenty-seven".