428268711 has 16 divisors (see below), whose sum is σ = 617138816. Its totient is φ = 262611936.

The previous prime is 428268707. The next prime is 428268749. The reversal of 428268711 is 117862824.

It is a happy number.

It is not a de Polignac number, because 428268711 - 2² = 428268707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 428268711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428268761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8365 + ... + 30438.

It is an arithmetic number, because the mean of its divisors is an integer number (38571176).

Almost surely, 2^428268711 is an apocalyptic number.

428268711 is a deficient number, since it is larger than the sum of its proper divisors (188870105).

428268711 is a wasteful number, since it uses less digits than its factorization.

428268711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39102.

The product of its digits is 43008, while the sum is 39.

The square root of 428268711 is about 20694.6541647837. The cubic root of 428268711 is about 753.7698846543.

The spelling of 428268711 in words is "four hundred twenty-eight million, two hundred sixty-eight thousand, seven hundred eleven".