428025259 has 4 divisors (see below), whose sum is σ = 429604960. Its totient is φ = 426445560.

The previous prime is 428025253. The next prime is 428025307. The reversal of 428025259 is 952520824.

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 428025259 - 2³ = 428025251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428025251) 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, 789444 + ... + 789985.

It is an arithmetic number, because the mean of its divisors is an integer number (107401240).

Almost surely, 2^428025259 is an apocalyptic number.

428025259 is a deficient number, since it is larger than the sum of its proper divisors (1579701).

428025259 is a wasteful number, since it uses less digits than its factorization.

428025259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579700.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 428025259 is about 20688.7713264950. The cubic root of 428025259 is about 753.6270291961.

The spelling of 428025259 in words is "four hundred twenty-eight million, twenty-five thousand, two hundred fifty-nine".