428260027 has 12 divisors (see below), whose sum is σ = 469621920. Its totient is φ = 390300768.

The previous prime is 428260013. The next prime is 428260043. The reversal of 428260027 is 720062824.

It is not a de Polignac number, because 428260027 - 2⁷ = 428259899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428260927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2688 + ... + 29389.

It is an arithmetic number, because the mean of its divisors is an integer number (39135160).

Almost surely, 2^428260027 is an apocalyptic number.

428260027 is a deficient number, since it is larger than the sum of its proper divisors (41361893).

428260027 is a wasteful number, since it uses less digits than its factorization.

428260027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32182 (or 32169 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 428260027 is about 20694.4443510813. Note that the first 3 decimals coincide. The cubic root of 428260027 is about 753.7647898919.

The spelling of 428260027 in words is "four hundred twenty-eight million, two hundred sixty thousand, twenty-seven".