428905253 has 8 divisors (see below), whose sum is σ = 490492800. Its totient is φ = 367396560.

The previous prime is 428905247. The next prime is 428905261. The reversal of 428905253 is 352509824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 428905253 - 2²⁴ = 412128037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428905153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7553 + ... + 30246.

It is an arithmetic number, because the mean of its divisors is an integer number (61311600).

Almost surely, 2^428905253 is an apocalyptic number.

It is an amenable number.

428905253 is a deficient number, since it is larger than the sum of its proper divisors (61587547).

428905253 is a wasteful number, since it uses less digits than its factorization.

428905253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39427.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 428905253 is about 20710.0278367751. The cubic root of 428905253 is about 754.1431461600.

The spelling of 428905253 in words is "four hundred twenty-eight million, nine hundred five thousand, two hundred fifty-three".