428059457 has 16 divisors (see below), whose sum is σ = 493461120. Its totient is φ = 363737088.

The previous prime is 428059441. The next prime is 428059483. The reversal of 428059457 is 754950824.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 428059457 - 2⁴ = 428059441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428059487) 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 15 ways as a sum of consecutive naturals, for example, 497894 + ... + 498752.

It is an arithmetic number, because the mean of its divisors is an integer number (30841320).

Almost surely, 2^428059457 is an apocalyptic number.

It is an amenable number.

428059457 is a deficient number, since it is larger than the sum of its proper divisors (65401663).

428059457 is a wasteful number, since it uses less digits than its factorization.

428059457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400.

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 428059457 is about 20689.5977969607. The cubic root of 428059457 is about 753.6470995465.

The spelling of 428059457 in words is "four hundred twenty-eight million, fifty-nine thousand, four hundred fifty-seven".